April 30
April 30 is the 121st day of the year in the Gregorian calendar; 245 days remain until the year's end. It falls in spring (northern hemisphere) and under the astrological sign of Taurus.
External references
Curated jump-off points to the major almanacs, encyclopaedias and primary sources for this date.
Astronomy
On April 30 the Sun's declination is approximately +14.9°. At this latitude the Sun is north of the celestial equator, giving the Northern Hemisphere longer days than nights.
For specific rise/set times at your location, see the U.S. Naval Observatory, or the NASA APOD archive for any imagery published on a April 30.
Position in the year
Holidays & observances
No widely-observed holidays catalogued for this day in our base set. See the external almanacs above for region-specific observances.
Events
A selection of widely-documented historical events that took place on this date. Years marked BCE follow standard astronomical convention.
1789 — George Washington was inaugurated as the first President of the United States in New York City. ↗(237 years ago)more
The first inauguration of George Washington as the first president of the United States was held on Thursday, April 30, 1789, on the balcony of Federal Hall in New York City. The inauguration was held nearly two months after the beginning of the first four-year term of George Washington as president.
1803 — The U.S. completed the Louisiana Purchase, doubling its territory. ↗(223 years ago)more
The Louisiana Purchase was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Mississippi River's drainage basin west of the river.
1945 — Adolf Hitler died by suicide in his Berlin bunker as Soviet forces closed in. ↗(81 years ago)more
On 30 April 1945, Adolf Hitler committed suicide by gunshot in the Führerbunker when it became clear that Germany would lose the Battle of Berlin, which resulted in Germany's surrender to the Allies and the end of World War II in Europe. His wife Eva Braun, whom he had married the day before, committed suicide with him via cyanide poisoning.
1975 — The fall of Saigon ended the Vietnam War; the People's Army of Vietnam captured the South Vietnamese capital. ↗(51 years ago)more
Saigon, the capital of South Vietnam, was captured by North Vietnam on 30 April 1975. This caused the collapse of South Vietnam to communism and the evacuation of thousands of civilians and U.S. personnel, and ended the Vietnam War.
1993 — CERN announced the World Wide Web would be free for anyone to use. ↗(33 years ago)more
The World Wide Web is a public interconnected information system that enables content sharing over the Internet. It facilitates access to documents and other web resources according to specific rules of the Hypertext Transfer Protocol (HTTP).
Notable births
1777 — Carl Friedrich Gauss, German mathematician and physicist. ↗(249 years ago)more
Johann Carl Friedrich Gauss was a German mathematician, astronomer, geodesist, and physicist, who contributed to many fields in mathematics and science. His mathematical contributions spanned the branches of number theory, algebra, analysis, geometry, statistics, and probability.
Notable deaths
1945 — Adolf Hitler. ↗(81 years ago)more
Adolf Hitler was an Austrian-born German politician who was the dictator of Germany during the Nazi era from 1933 until his suicide in 1945. He rose to power as the leader of the Nazi Party, becoming the chancellor of Germany in 1933 and then taking the title of Führer und Reichskanzler in 1934.
Numerical & calendrical curiosities
| Day-of-year (121) | 11^2 · composite (no) |
|---|---|
| Days remaining (245) | 5 × 7^2 |
| Date code DDMMYYYY | 30042026 · no palindrome in next 200 years |
| Sun declination | +14.89° (Cooper approximation) |
| Distance from solstice | 51 days |