John Hunter was 12 years old when An electoral tie between Thomas Jefferson and Aaron Burr is resolved when Jefferson is elected President of the United States and Burr, Vice President by the United States House of Representatives. The United States Electoral College is a body of electors established by the United States Constitution, constituted every four years for the sole purpose of electing the president and vice president of the United States. The College consists of 538 electors, and an absolute majority of 270 electoral votes is required to win election. Pursuant to Article II, Section 1, Clause 2, the legislature of each state determines the manner by which its electors are chosen. Each state's number of electors is equal to the combined total of the state's membership in the Senate and House of Representatives; currently there are 100 senators and 435 representatives. Additionally, the Twenty-third Amendment provides that the District of Columbia is entitled to the number of electors no greater than that of the least populous state.
John Hunter was 30 years old when Sir Thomas Stamford Raffles founds Singapore. Sir Thomas Stamford Bingley Raffles, FRS was a British statesman, Lieutenant-Governor of British Java (1811–1815) and Governor-General of Bencoolen (1817–1822), best known for his founding of Singapore and the British Malaya.
John Hunter was 37 years old when The Erie Canal opens: Passage from Albany, New York to Lake Erie. The Erie Canal is a canal in New York, United States that is part of the east–west, cross-state route of the New York State Canal System. Originally, it ran 363 miles (584 km) from where Albany meets the Hudson River to where Buffalo meets Lake Erie. It was built to create a navigable water route from New York City and the Atlantic Ocean to the Great Lakes. When completed in 1825, it was the second longest canal in the world and greatly affected the development and economy of New York, New York City, and the United States.