2013 Event Scientists describe the 160-million year-old fossile of Aurornis xui as the most basal species of Avialae, possibly shifting the evolutionary position of the Archaeopteryx as the oldest known bird 2000 Death Robert Trout, radio Methuselah, ", coined the term ""fireside chat"" to describe FDR's informal speeches, ", dies at 91 1892 Event Mrs William Astor invites 400 guests to a grand ball at her mansion thus beginning use of "400" to describe socially elite 1644 Event Florentine scientist describe invention of barometer
