By the 17th century, tennis courts began to appear more regularly in cities. London at this time had at least 14 courts. The game by now had spread through most of Europe. However, rising Puritanism in the mid to late 17th century began to diminish the game's appeal in England. In France, during the French Revolution, some began to see tennis as a sport for royalty and should not be played. By the 18th century, depictions of nets are now evident, indicating it had become a standard part of the game. The basic rules of tennis around today were, therefore, largely present by the 18th century.
The next major phase of development occurred in the 19th century, where tennis was now able to spread to the masses. During this time, both clay courts and lawn tennis emerged as features of the game. In Victorian Britain, tennis was now seen as a virtuous sport. The British Empire now began to also spread the sport to its Asian and other colonies as it was deemed to be a civilized game. At home, the game was seen to be an activity for ladies and gentlemen. Rules were still not standardized by the mid-19th century. Games sometimes featured two against one player, while court dimensions varied .