Vassar College is founded by Matthew Vassar who requires all students to take physical education classes. The earliest documented mention of women playing baseball in the United States is contained in a letter from Vassar student Annie Gliddens to her brother dated April 20, 1866. I belong to one of the latter, and enjoy it hugely I can assure you. A boating club is formed along with two baseball clubs.
Tennis is introduced on campus.
The first women's field day in America is held at Vassar. Swimming was introduced as a formal degree requirement by President Henry Noble MacCracken. In April, the college breaks ground for Walker Field House. Men's lacrosse is added. Women's tennis is the first team to qualify for a NCAA team championship.