- Jul 8 Dr. Benjamin Waterhouse gives the first cowpox vaccination in the United States to his son to prevent smallpox
- Jul 9 Mt Vernon Gardens becomes site of 1st summer theater in US
- Jul 10 The British Indian Government establishes the Fort William College to promote Urdu, Hindi and other vernaculars of sub continent
- Jul 28 Thames River Police established by act of British parliament, replacing earlier Marine Police (1798-1800) - world's oldest continuously serving police force