Short answers, pulled from the story.
Louis X of France died in June 1316 at Vincennes following an exhausting game. He was history's first tennis player known by name and had constructed indoor courts in Paris around the end of the 13th century to play indoors rather than outside.
Walter Clopton Wingfield wrote about his version of lawn tennis on the 8th of December 1874 and patented a game called sphairistikè in December 1873 which became known simply as sticky. Harry Gem and Augurio Perera developed a game combining racquets and Basque pelota between 1859 and 1865 before founding the world's first tennis club on Avenue Road, Leamington Spa, in 1872.
The International Tennis Federation defines official ball diameter as between 65.41 millimeters and 68.58 millimeters. Balls must weigh between 56.0 grams and 59.4 grams to meet regulation standards and traditionally changed from white to optic yellow in the latter part of the 20th century for improved visibility.
Tennis appeared as an original Olympic sport consistently part of Summer Games since 1988 following withdrawal after 1924 competition. It returned 60 years later as 21-and-under demonstration event in 1984 credited to ITF president Philippe Chatrier and general secretary David Gray before full-medal status was reintroduced at Seoul Olympics in 1988.
O.E. Woodhouse defeated Canadian I.F. Hellmuth for the silver cup worth $100 when the first American National championship occurred there in September 1880. The United States National Lawn Tennis Association formed on the 21st of May 1881 to standardize rules and organize competitions while the US National Men's Singles Championship began in 1881 at Newport Casino.