Today:
1687 – Isaac Newton publishes “Philosophiæ Naturalis Principia Mathematica” (Mathematical Principles of Natural Philosophy), laying the foundations of classical mechanics.
1811 – Venezuela declares independence from Spain.
1830 – France invades Algeria.
1841 – Thomas Cook organizes the first package excursion, from Leicester to Loughborough.
1865 – The United States Secret Service is established.
1934 – “Bloody Thursday” – Police open fire on striking longshoremen in San Francisco.
1946 – The bikini is introduced in Paris by Louis Réard.
1971 – The Twenty-sixth Amendment to the United States Constitution, which lowers the voting age from 21 to 18 years, is formally certified.
1996 – Dolly the sheep, the first mammal cloned from an adult cell, is born in Scotland.
2016 – The Juno spacecraft arrives at Jupiter, entering orbit around the gas giant.
30 American Heritage Events: #5
Louisiana Purchase (1803)
The U.S. purchased the Louisiana Territory from France, doubling its size.