It allowed women to vote when they couldn't before.
The Apollo program! The first one to make it to the moon was Apollo 11. Buzz Aldrin and Neil Armstrong were the first people on the moon.
I think the answer is that The 1850s was a pivotal decade in the 19th century. In the United States, tensions over slavery became prominent and events began to put the nation on the road to civil war. In Europe, new technology was celebrated and the great powers fought the Crimean War.
