Event:
1st military use of trained dolphins by the U.S. Navy
More Notable Events on October 13:
1987 1st military use of trained dolphins by the U.S. Navy
1978 President Carter answers caller questions on National Public Radio
1943 Italy declares war on former Axis partner Germany
1884 Greenwich established as universal time meridian of longitude
1792 1st Old Farmer's Almanac is published
