NASA’s STS-40 became the first spaceflight with three women to be launched into space.
Source
Isaac Newton was admitted as a student to Cambridge University’s Trinity College.
Registration of US men aged between 21 and 31 began for troops for WWI.
Uncle Tom's Cabin, an anti-slavery novel by Harriet Beecher, was first published.
Montenegro became the 29th country to join NATO.
The US Neutrality Act was enacted.