What year did tennis establish?
There is no exact year, however the idea of tennis was founded in the 12th Century.
What are the release dates for On Court with USPTA - 2003 Developing Weapons for Senior Tennis Establish the Threat 2-6?
Modern tennis was born in England in 19th century. In the year of 1873 Walter Wingfield from United Kingdom invented a version of "Real Tennis" that can be played outdoors on a lawn. In the year of 1874 Clark brothers(Joseph and Clarence), take one of Walter Wingfield's boxes to United States, leading to the first lawn tennis tournament in the USA ground later that year.