The First official World's Fair, was held to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia. 37 Countries provided venues for all to see.
1876 · The Battle of Little Bighorn
An armed conflict between the Lakota, Northern Cheyenne, and Arapaho tribes and the 7th Cavalry of the US Army. The battle was the most significant action of the Great Sioux War of 1876.
1892 · The Radio is invented
Kentucky native Nathan Stubblefield invented the radio in 1892
1 English: from Cocke in any the senses described + the suffix -s denoting ‘son of’ or ‘servant of’.2 Irish (Ulster): mistranslation of Mac Con Coille (‘son of Cú Choille’, a personal name meaning ‘hound of the wood’), as if formed with coileach ‘cock’, ‘rooster’.