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- How Did the Scythians Influence the Achaemenid Empire (4 categories)
- What is the history of the playground (4 categories)
- What was the dominant medical sect in the United States during the 19th Century (4 categories)
- How did the Carter Administration react to the Soviet Union invasion of Afghanistan in 1978 (4 categories)
- Did Christianity Positively Impact the Civil Rights Movement (4 categories)
- How do you study the history of espionage (4 categories)
- How Historically Accurate is Season 2 of Versailles (4 categories)
- How did Caesar's conquest of Gaul change both Rome and Gaul (4 categories)
- How did ancient Professional Armies develop (4 categories)
- British Criminal and Legal History Top Ten Booklist (4 categories)
- What were the goals of the Axis powers and the Soviet Union during World War Two (4 categories)
- Was Sherlock Holmes a real person (4 categories)
- How historically accurate is the Medici Masters of Florence Series (4 categories)
- How Did Spy Services Develop in France (4 categories)
- The Assassin's Accomplice by Kate Clifford Larson - Book Review (4 categories)
- What is the history of creation mythologies (4 categories)
- What was the Achaemenid Persian Empire (4 categories)
- Why was the First Heart Transplant a Failure (4 categories)
- How did Father's Day develop (4 categories)
- How did Monotheism Develop (4 categories)
- 2016 American Historical Association Book Awards (4 categories)
- How did hunting become a symbol of the royalty (4 categories)
- Top Ten Books on The Medici Family during the Renaissance (4 categories)
- What Are the Origins of Ancient Egypt’s Middle Kingdom (4 categories)
- How Did God Influence the Wounded in the American Civil War (4 categories)
- How Did the 1967 War Shape the Middle East (4 categories)
- Why did the Empire of Alexander the Great fragment after his death (4 categories)
- What has been the influence of the historian Thucydides (4 categories)
- What was the evolution of water technologies like (4 categories)
- How does The Magna Carta influence the Modern Perceptions of Civil Rights (4 categories)
- What Factors Led to the Creation of the First Cities (4 categories)
- How Did the Creation of Paper Money during the Song Dynasty Impact China (4 categories)
- What is the History of Public Debt (4 categories)
- How did Cardinal Richelieu change France (4 categories)
- What were the historical events that led to the United States involvement in the Vietnam War (4 categories)
- Was William Tell a real person (4 categories)
- What Was the Fate of Women During the Bangladesh Liberation War (4 categories)
- How Did Spy Services Develop in Russia (4 categories)
- Nature's Path: Interview with Susan E. Cayleff (4 categories)
- How Was Hitler Responsible for the German Defeat in World War II (4 categories)
- How did Mother's Day develop (4 categories)
- 2016 Organization of American Historians Book Awards (4 categories)
- How did illegal abortions spur the push for medical licensing in the 19th Century (4 categories)
- When did Social Inequality Develop in the Ancient World (4 categories)
- How did the Sharia Law develop (4 categories)
- Who was Thanatos the God of Death in Greek mythology (4 categories)
- What Are the Origins of Egyptology (4 categories)
- How the Rise of Common Languages Developed in the Ancient Near East (4 categories)
- What if the Battle of Qadisiyyah Had a Different Result (4 categories)
- What were the causes of the Northern Renaissance (4 categories)
- Was Dracula based on a real person (4 categories)
- How Did Ancient Societies Adapt to Dairy Consumption (4 categories)
- What Gods Did Darius "the Great" Worship (4 categories)
- What is the History of US Presidential Scandals (4 categories)
- How Historically Accurate is season 1 of The Last Kingdom (4 categories)
- Why has the French Civil Code had a lasting influence on contemporary European law (4 categories)
- What was the impact of the Emperor Domitian on the Roman Empire (4 categories)
- How did climate change influence ancient Chinese societies? (4 categories)
- Did the Sack of Rome in 1527 end the Renaissance in Italy (4 categories)
- What Was the Importance of Alcohol Consumption in Ancient Egypt (4 categories)
- What convinced Americans during the 1918 Flu Pandemic to wear masks (4 categories)
- What is the history of government shutdowns in the United States (4 categories)
- What was the Borgias contribution to Renaissance Italy (4 categories)
- What was the Significance of the 1874 Second Battle of Adobe Walls in Texas (4 categories)
- 2017 Organization of American Historians Book Awards (4 categories)
- How did kitchens develop (4 categories)
- When did Western Medicine expand into Japan (4 categories)
- How did the Silk Road develop (4 categories)
- Who was Theseus the great Athenian king and hero (4 categories)
- Presidential Leadership Top Ten Booklist (4 categories)
- How Did the Ur III Dynasty Impact Ancient Mesopotamian History (4 categories)
- What were the causes of the Peloponnesian War (4 categories)
- How did the Colosseum get its name (4 categories)
- The Other Founders by Saul Cornell - Book Review (4 categories)
- Did Theodore Roosevelt really save Football (4 categories)
- Was Elizabeth I Justified in having her Cousin Mary Stuart, Queen of Scotland Executed (4 categories)
- How Did Psamtek I Save Ancient Egypt (4 categories)
- Why did Los Angeles adopt Cars instead of Mass Transit (4 categories)
- How Historically Accurate is season 1 of Versailles (4 categories)
- Why Were the Ancient Israelites and Edomites Enemies (4 categories)
- How historically accurate is the movie 'The Revenant' (4 categories)
- What Was the Importance of Bill Mauldin to WWII Infantrymen (4 categories)
- What was the role of the Popes in the Renaissance (4 categories)
- Who was the Roman God Janus (4 categories)
- What Are the Origins of the Germanic Tribes (4 categories)
- How Did the Ancient City of Sais Rise to Prominence (4 categories)
- Primed for Violence in Interwar Poland: Interview with Paul Brykczynski (4 categories)
- What if the Vikings Never Invaded England (4 categories)
- What was the impact of Charles VIIIs invasion of Italy (1494) on the Renaissance (4 categories)
- American Surveillance: Interview with Anthony Gregory (4 categories)
- Why Did the Ancient Egyptians Mummify Animals (4 categories)
- How has the Roman Lex Mercatoria evolved to play a role in modern International Trade and Commerce Codification (4 categories)
- What Is the Historical Development of Bread (4 categories)
- Why did Medical Licensing Boards prosecute Christian Scientists for practicing medicine during the 19th Century (4 categories)
- How Historically Accurate is season 1 of Victoria (4 categories)
- How did Hitler become the Dictator and Fuhrer of Germany (4 categories)
- What was the impact of the Emperor Tiberius on the Roman Empire (4 categories)
- How did climate change influence the rise of ancient Egypt (4 categories)
- What were the reasons for the defeat of the Emperor Julian the Apostate's invasion of Persia in 363 AD (4 categories)
- How did the Peace of Augsburg (1555) lead to the Thirty Years War (1618-1648) (4 categories)
- Top 10 Books to Read on Western/British Medical History (4 categories)
- How Did Early Mathematics Evolve (4 categories)
- Why Were the Maya Such Excellent Warriors (4 categories)
- What Was the Importance of Pyramids in Ancient Egypt (4 categories)
- Why did the Baroque Style develop (4 categories)
- How Did the Mycenaeans Influence Classical Greece (4 categories)
- What is the history of impeachment in the United States (4 categories)
- What was the Comstock Act (4 categories)
- What was the Third Wave Feminist Movement (4 categories)
- How did the 'Malaise' Period of Struggle in the 1970s Occur in the United States (4 categories)
- Top Ten War Books that were turned into Movies (4 categories)
- How did the wars of the Byzantine Emperor Justinian, change history (4 categories)
- How Did Honey Evolve in our Diet (4 categories)
- What was the impact of Eumenes on the Hellenistic World (4 categories)
- Was Leni Riefenstahl a War Criminal (4 categories)
- Why Did the Bretton Woods Economic System End (4 categories)
- What Is the History of Ice Cream (4 categories)
- Tactical Media - Book Review (4 categories)
- How did Comedy develop overtime (4 categories)
- What were the social factors that led to the Renaissance in Italy (4 categories)
- How did the Phoenicians contribute to western civilization (4 categories)
- Was the story of Jekyll and Hyde based on real-life characters (4 categories)
- Why Were the Philistines and Israelites Enemies (4 categories)
- Why was St. Augustine so important in Christian History (4 categories)
- A Study of Subaltern Studies (4 categories)
- When did oil paints become popular (4 categories)
- History of God Top Ten Booklist (4 categories)
- Who was the first pope (4 categories)
- How Did Hospitals Emerge (4 categories)
- How were texts selected for the New Testament (4 categories)
- What Were the Circumstances Surrounding the Battle of the Washita River (4 categories)
- Why did the Italian Renaissance End (4 categories)
- Public Health and the Risk Factor by William Rothstein (4 categories)
- What is the Deep Impact of Plant Domestication (4 categories)
- How did American football develop (4 categories)
- What were the consequences of Alexander the Great's invasion of India (4 categories)
- What Is the Legacy of the 1993 Waco Tragedy (4 categories)
- How Did the Hittites Influence the Late Bronze Age Near East (4 categories)
- What is the history of New Year Resolutions (4 categories)
- How did Julius Caesar rise to power (4 categories)
- What was the impact of the Irish Famine on Ireland and the world (4 categories)
- When Did Jackie Robinson Integrate Baseball and Why Is It Important (4 categories)
- Fate of the Revolution: Interview with Lorri Glover (4 categories)
- How Did Trade Tariffs Develop (4 categories)
- Why was it difficult to punish the police for brutality during the Gilded Age (4 categories)
- Why was the Treaty of Versailles signed after World War I a failure (4 categories)
- How did Petrarch influence the Renaissance (4 categories)
- When did political parties emerge (4 categories)
- How Historically Accurate Is Victoria and Abdul (4 categories)
- What made Julius Caesar a great general (4 categories)
- How did Aristotle fundamentally change philosophy and science (4 categories)
- What was the impact of John Knox, on Scotland and on religion (4 categories)
- What were the consequences of Caesar's assassination (4 categories)
- How did the Fall of Constantinople change the Renaissance in Italy (4 categories)
- When were water fountains created (4 categories)
- Was Moby Dick based on real historical events (4 categories)
- How Did Black Friday Develop (4 categories)
- How Did Sargon of Akkad Influence Ancient Mesopotamian History (4 categories)
- How did Early Empires facilitate the Rise of Investment Banking (4 categories)
- How did the Reformation change Christianity (4 categories)
- Why Were there Multiple Ancient Mesopotamian Creation Myths (4 categories)
- How historically accurate is the movie The King's Speech (4 categories)
- How Did Universal Religions Change the World (4 categories)
- Playing Indian by Philip Deloria (4 categories)
- How accurate is Stanley Kubrick's 'Spartacus' (4 categories)
- The Federalist Papers - Number 59 (3 categories)
- In what ways did Peter the Great change Russia (3 categories)
- How Historically Accurate Is the Medici Season 2 (3 categories)
- The Federalist Papers - Number 20 (3 categories)
- What was the impact of Spartacus' uprising on Rome (3 categories)
- The Federalist Papers - Number 7 (3 categories)
- What Role Did Inflation Play in the Collapse of the Roman Empire (3 categories)
- How Did Senusret III Influence Ancient Egyptian History (3 categories)
- What is the history of apocalyptic mythologies (3 categories)
- The Federalist Papers - Number 30 (3 categories)
- The Federalist Papers - Number 5 (3 categories)
- The Federalist Papers - Number 8 (3 categories)
- Constitution of the United States: Amendments XI - XXVII (3 categories)
- Fool's Crow by James Welch - Book Review (3 categories)
- Why are American states referred to as Red and Blue states (3 categories)
- The Federalist Papers - Number 11 (3 categories)
- The Federalist Papers - Number 40 (3 categories)
- The Federalist Papers - Number 6 (3 categories)
- Wartime by Paul Fussell - Book Review (3 categories)
- Why Did American Colonists Become United Against England (3 categories)
- What is the History of Mass Protests in the United States (3 categories)
- The Federalist Papers - Number 21 (3 categories)
- How did Boccaccio influence the Renaissance (3 categories)
- The Federalist Papers - Number 70 (3 categories)
- Benedict Anderson’s Imagined Communities (3 categories)
- Where Did the Tradition Of Death Photography Emerge From (3 categories)
- What is the history of contested presidential elections in the United States (3 categories)
- The Federalist Papers - Number 31 (3 categories)
- How did Emperor Septimius Severus change the Roman Empire (3 categories)
- The Federalist Papers - Number 50 (3 categories)
- How did hot dogs develop into a popular food (3 categories)
- The Federalist Papers - Number 80 (3 categories)
- Constitution of the United States: Article I (3 categories)
- The Federalist Papers - Number 12 (3 categories)
- What is the history of the United States Capitol Building (3 categories)
- The Federalist Papers - Number 41 (3 categories)
- How did Rome benefit from the destruction of Carthage in 146 BC (3 categories)
- The Federalist Papers - Number 60 (3 categories)
- What were the Klu Klux Klan and the Enforcement Acts of 1870-71 (3 categories)
- How did the Byzantine Empire influence Russia (3 categories)
- The Federalist Papers - Number 22 (3 categories)
- How did Zeus become king of the gods in Greek mythology (3 categories)
- The Federalist Papers - Number 71 (3 categories)
- How did the Ionian Revolt (499-493 BC) change the Ancient World (3 categories)
- Was Robinson Crusoe based on a real person (3 categories)
- The Federalist Papers - Number 32 (3 categories)
- The Federalist Papers - Number 51 (3 categories)
- The Federalist Papers - Number 81 (3 categories)
- Constitution of the United States: Article II (3 categories)
- Top Ten Books on Napoleon Bonaparte (3 categories)
- Who was Pericles? (3 categories)
- How did the game of golf emerge (3 categories)
- How Did the 1889 1890 Flu Pandemic Affect History (3 categories)
- What has been the Role of Horses in Human Societies (3 categories)
- The Federalist Papers - Number 13 (3 categories)
- How accurate is the movie The Aviator (3 categories)
- The Federalist Papers - Number 42 (3 categories)
- The Federalist Papers - Number 61 (3 categories)
- What Events Led to the Vietnam War - From Partition to the Viet Cong (3 categories)
- Why did Hera hate Zeus (3 categories)
- What Were the Motives of the Irish in the American Civil War (3 categories)
- How Did the Bed Develop as Household Furniture (3 categories)
- What is the History of Pandemics (3 categories)
- The Federalist Papers - Number 23 (3 categories)
- The Federalist Papers - Number 72 (3 categories)
- How Did Christmas Trees Become Christmas Symbols (3 categories)
- The Federalist Papers - Number 33 (3 categories)
- The Federalist Papers - Number 43 (3 categories)
- With the Old Breed: At Peleliu and Okinawa by E.B. Sledge - Book Review (3 categories)
- The Federalist Papers - Number 52 (3 categories)
- What was the legend of the Minotaur (3 categories)
- The Federalist Papers - Number 82 (3 categories)
- Constitution of the United States: Article III (3 categories)
- How did the Sepoy Rebellion (Indian Mutiny) change India (3 categories)
- The Federalist Papers - Number 14 (3 categories)
- What is the history of vacations in the United States (3 categories)
- The Federalist Papers - Number 63 (3 categories)
- Was Claudius an effective Roman Emperor (3 categories)
- Why do Countries have National Anthems (3 categories)
- The Federalist Papers - Number 24 (3 categories)
- How did Florida become a State (3 categories)
- How did bath houses become popular (3 categories)
- The Federalist Papers - Number 73 (3 categories)
- How Did Cleopatra Die (3 categories)
- How Did the Mitanni Kingdom Rise to Power (3 categories)
- What is the history of going to the beach (3 categories)
- The Federalist Papers - Number 34 (3 categories)
- Why was the French Foreign Legion Created (3 categories)
- The Federalist Papers - Number 44 (3 categories)
- Working Toward Whiteness by David Roediger - Book Review (3 categories)
- The Federalist Papers - Number 53 (3 categories)
- The Federalist Papers - Number 83 (3 categories)
- Constitution of the United States: Article IV (3 categories)
- Good-Bye to All That by Robert Graves - Book Review (3 categories)
- How Did Gold Become Desired by Ancient Civilizations (3 categories)
- What Were the Ancient Egyptian Creation Myths (3 categories)
- How Did the Ancient City of Memphis Rise to Prominence (3 categories)
- The Federalist Papers - Number 15 (3 categories)
- The Federalist Papers - Number 64 (3 categories)
- The Federalist Papers - Number 25 (3 categories)
- How did Cato the Elder alter the course Roman history (3 categories)
- The Federalist Papers - Number 74 (3 categories)
- New Kingdom Ancient Egypt Top Ten Booklist (3 categories)
- How Was Marriage in Ancient Egypt Different than the Modern Concept (3 categories)
- The Federalist Papers - Number 35 (3 categories)
- Why was the God of Wine, Dionysus so feared and influential (3 categories)
- The Federalist Papers - Number 54 (3 categories)
- The Federalist Papers - Number 84 (3 categories)
- Constitution of the United States: Article V (3 categories)
- How Did Government Propaganda Develop (3 categories)
- The Federalist Papers - Number 16 (3 categories)
- What is the myth of Sisyphus (3 categories)
- How did Vatican II change the Catholic Church (3 categories)
- The Federalist Papers - Number 65 (3 categories)
- The Federalist Papers - Number 26 (3 categories)
- The Federalist Papers - Number 45 (3 categories)
- The Federalist Papers - Number 75 (3 categories)
- How Did Early Judicial Systems Evolve (3 categories)
- What did Achilles do in the Trojan War and how important was he in Greek culture (3 categories)
- What is the history of how gods ruled over humanity (3 categories)
- The Federalist Papers - Number 36 (3 categories)
- The Federalist Papers - Number 55 (3 categories)
- How did modern boxing emerge (3 categories)
- The Federalist Papers - Number 9 (3 categories)
- Constitution of the United States: Article VI (3 categories)
- Great Gifts for History Lovers 2018 (3 categories)
- What Were the Beliefs of the Samurai (3 categories)
- The Federalist Papers - Number 17 (3 categories)
- What is the significance of Orpheus and Eurydice (3 categories)
- The Federalist Papers - Number 66 (3 categories)
- How did the Emperor Trajan change the Roman Empire (3 categories)
- When were Spy Services created in the United States (3 categories)
- What are the Lasting Legacies of the Roman Empire on Modern Governments (3 categories)
- Why was Britain able to establish an Empire in India (3 categories)
- The Federalist Papers - Number 27 (3 categories)
- The Federalist Papers - Number 46 (3 categories)
- The Federalist Papers - Number 76 (3 categories)
- How historically accurate is the movie 'Tora, Tora, Tora' (3 categories)
- Why did the United States begin directly electing Senators in 1913 (3 categories)
- The Federalist Papers - Number 37 (3 categories)
- The Federalist Papers - Number 56 (3 categories)
- What was the role of the Praetorian Guard in Roman History (3 categories)
- Constitution of the United States: Article VII (3 categories)
- When did interracial marriage become legal in the United States (3 categories)
- How did the Throne Develop as a Royal Symbol (3 categories)
- The Federalist Papers - Number 18 (3 categories)
- The Federalist Papers - Number 67 (3 categories)
- Ancient Egypt’s Third Intermediate and Late Periods Top Ten Booklist (3 categories)
- What were the causes of the Witch Craze in Europe, 1550-1700 (3 categories)
- How have Historians' perceptions of Native Americans changed (3 categories)
- What is the history behind Frankenstein (3 categories)
- The Federalist Papers - Number 28 (3 categories)
- The Federalist Papers - Number 47 (3 categories)
- What was the impact of the German Peasant War (1524-1527) on the Reformation (3 categories)
- How did cycling become popular (3 categories)
- The Federalist Papers - Number 77 (3 categories)
- Top Ten Booklist for the History of Ethics (3 categories)
- How Did Easter Become an Important Celebration (3 categories)
- How Did the Nubians Impact Ancient Egypt (3 categories)
- What is the history of music festivals (3 categories)
- The Federalist Papers - Number 38 (3 categories)
- The Federalist Papers - Number 57 (3 categories)
- Constitution of the United States: Bill of Rights (3 categories)
- How Did the Ancient Egyptian State Form (3 categories)
- How Historically Accurate Is The King (3 categories)
- The Federalist Papers - Number 19 (3 categories)
- What issues divided the United States in the 1920 election (3 categories)
- What was the impact of Ivan the Terrible on Russia (3 categories)
- The Federalist Papers - Number 68 (3 categories)
- Did multi-cultural societies become widely accepted in ancient history (3 categories)
- Was Merlin based on a real person (3 categories)
- Why Did the Perpetrators of the Rwandan Genocide Show No Remorse (3 categories)
- What are the Origins of Astronomy (3 categories)
- How Historically Accurate is the Outlaw King (3 categories)
- The Federalist Papers - Number 29 (3 categories)
- How did Dante influence the Renaissance (3 categories)
- The Federalist Papers - Number 48 (3 categories)
- The Federalist Papers - Number 78 (3 categories)
- How did the battle of Manzikert (1071) change the Byzantine Empire (3 categories)
- Was the story of the Man in the Iron Mask based on a real person (3 categories)
- Why Were the Phoenicians Such Successful Merchants (3 categories)
- How historically accurate is the movie Hurricane (aka Mission of Honor) (3 categories)
- The Federalist Papers - Number 39 (3 categories)
- Interview:The History of Doctors Without Borders: Interview with Renée Fox (3 categories)
- The Federalist Papers - Number 58 (3 categories)
- What was used for birth control in medieval Europe (3 categories)
- Constitution of the United States: Preamble (3 categories)
- Who were the Amazons the warrior women in Greek mythology (3 categories)
- How Did the Athenians Fund Their Military during the Peloponnesian War? (3 categories)
- The Federalist Papers - Number 2 (3 categories)
- The Federalist Papers - Number 69 (3 categories)
- Did the Ancient Egyptians’ Gods and Goddesses Have Personalities (3 categories)
- How have the relations between the United States of America and Russia changed since 1776 (3 categories)
- Why did Romulus kill Remus (3 categories)
- How Historically Accurate is the Rise of Empires: Ottoman Series (3 categories)
- The Federalist Papers - Number 3 (3 categories)
- The Federalist Papers - Number 49 (3 categories)
- How did governments develop the idea of Prime Minister (3 categories)
- The Federalist Papers - Number 79 (3 categories)
- When Did Recreational Drugs Emerge (3 categories)
- Who helped Lawrence of Arabia shape the Arab Revolt (3 categories)
- How did the concept of paradise develop (3 categories)
- How Did the Ottoman Empire Become the Third Great Islamic Caliphate (3 categories)
- The Federalist Papers - Number 10 (3 categories)
- What is the history of socialism in the United States (3 categories)
- The Federalist Papers - Number 4 (3 categories)
- What was the Fatty Arbuckle Scandal and how did it influence Hollywood (3 categories)
- Why was the Turner Thesis abandoned by historians (3 categories)
- How Did Lullabies Develop (2 categories)
- How Did the Athenians Win the Battle of Marathon (2 categories)
- Raising Children by David F. Lancy - Book Review (2 categories)
- What is the History of Contact Tracing (2 categories)
- Where Did Different Christmas Traditions Come From (2 categories)
- What are the origins of Halloween (2 categories)
- How did higher education develop in the United States (2 categories)
- How Did Firefighting Develop (2 categories)
- How did water parks develop (2 categories)
- What was the impact of the Balfour Declaration (1917) on the Middle East (2 categories)
- How did zoos develop (2 categories)
- What is the History of Movie Posters (2 categories)
- What was the impact of the Battle of Carrhae (53BC) on Rome (2 categories)
- What is the history of cooling a home in summer (2 categories)
- What was the influence of Emperor Frederick II on the Italian Renaissance (2 categories)
- How important was Lucullus in the history of Rome (2 categories)
- Was Camelot based on a real place (2 categories)
- What was the impact of the Battle of Teutoburg Forest on the Roman Empire (2 categories)
- Why did surnames emerge (2 categories)
- Who was Prometheus and what did he do in Greek mythology (2 categories)
- How did Theodosius the Great change the Roman Empire (2 categories)
- How did Timur change the history of the world (2 categories)
- Shifting Boundaries by Alexis M. Silver - Book Review (2 categories)
- Was Zorro based on a real figure (2 categories)
- How historically accurate is the movie 'The Battle of the Bulge' (2 categories)
- The Bretton Woods Agreements for the IMF and the International Bank for Reconstruction and Development (2 categories)
- Great Gifts for History Lovers 2017 (2 categories)
- How did the modern tennis emerge (2 categories)
- When were Electric Cars Invented (2 categories)
- How did Hawaii become a US State (2 categories)
- News over the Wires - Book Review (2 categories)
- How did Alaska become a State (2 categories)
- What is the Magician's Oath and why is it important (2 categories)
- How Did Themistocles Fall from Grace (2 categories)
- How did Oklahoma become a State (2 categories)
- How did Weather Monitoring Develop (2 categories)
- How did the Enlightenment Philosophers View Race (2 categories)
- How Did Artificial Intelligence Develop (2 categories)
- How Did Public Aquariums Develop (2 categories)
- Who Were the Sea Peoples (2 categories)
- What was the role of the the war god Mars in Rome (2 categories)
- How did the workweek develop (2 categories)
- How Did Astronomy Fundamentally Change Human History (2 categories)
- How Did Saint Valentine's Day Develop (2 categories)
- Who exactly was Sacagawea (2 categories)
- What is the history of presidential transitions in the United States (2 categories)
- What was Prince Alexander Nevsky's contribution to Russian History (2 categories)