1870 Nathaniel P. Langford sketched the first detailed map of Yellowstone Lake from the vantage point of Colter Peak. Attribution: On This Day.
1873 Capt. W. A. Jones names Togwotee Pass after his Sheepeater (Mountain Shoshone) guide, Togwotee. Attribution: Wyoming State Historical Society.
1927 TV pioneer Philo T. Farnsworth succeeded in transmitting an image through purely electronic means by using a device called an image dissector, thereby ushering in the end of contemplative thought and decent civilization.
1936 Max Baer defeated Cowboy Sammy Evans in a prize fight in Casper.
1945 Trains were halted west of Green River as a bridge was destroyed by a fire. Attribution: Wyoming State Historical Society.
1995 The Van Vleck House in Jackson was added to the National Register of Historic Places. Attribution: On This Day.