The typewriter improved document production efficiency.

The Roman festival of Saturnalia — involving gift-giving, feasting, and role reversals — influenced Christmas traditions.

The first novel written on a typewriter was The Adventures of Tom Sawyer by Mark Twain in 1876.

Particles can exist in multiple states until observed.

There are invisible particles everywhere.

The first woman to win the Nobel Prize was Marie Curie in 1903 — she won a second in 1911.

Competitive swimming only standardized pool lengths to 50 meters for the Olympics in 1924.

Archery was the first sport to be included in the Olympics after its original ancient form disappeared from the games.

The world record for the 100m dash has dropped from 10.6 seconds in 1912 to 9.58 seconds today.