What happened in 1900?

Not too long ago, I was looking up some information about an item that I was going to put up for sale on Etsy.  While looking around, I found some fun tidbits about the year 1900.  Here’s some of the things that I found:

On March 15^th, the Gold Standard Act is ratified, placing the United States currency on the gold standard.  The United States printed the words “Gold Certificate” on them, and these notes are highly collected today.

On June 25^th, The Daoist monk Wang Yuanlu discovers the Dunhuang manuscripts, a cache of ancient texts that are of great historical and religious significance, in the Mogao Caves of Dunhuang, China.  These manuscripts include works ranging from the Buddhist religion to history and mathematics to folk songs and dance.

On November 3^rd, The first Auto show in the United States opens at New York City's Madison Square Garden.

What kind of fun facts have you run across when you are looking for more information on an item?