April 30th Events

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Netflix Bites MGM Grand Las Vegas
Pop Ups and Vendor Markets | Feb 11, 2025 - Feb 20, 2026
United States > Nevada > Las Vegas > > 89109

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Enter the My Nintendo Universal Epic Universe Super Nintendo World Sweepstakes
Gaming Contests | Mar 4 - Jun 30, 2025
United States > Florida > Orlando > > 32819

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Universal Fan Fest Nights
Experiences | Apr 25 - May 18, 2025
United States > California > Los Angeles > > 91608
Academy Museum of Motion Pictures Presents Director's Inspiration: Bong Joon Ho Exhibition
Memorabilia Exhibition | Mar 23, 2025 - Jan 10, 2027
United States > California > Los Angeles > > 90036

Firsts, Starts and Openings See All

Universal Fan Fest Nights
Experiences | Apr 25 - May 18, 2025
United States > California > Los Angeles > > 91608

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Star Wars:  Revenge of the Sith 20th Anniversary Theatrical Screening Series
Film Screenings and Series | Apr 25 - May 2, 2025

April 30th In History

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Spooky Swap Meet
Specialty Auctions and Conventions | Apr 29 - Apr 30, 2023
United States > California > Los Angeles > > 90031

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Anime Ocean City
Anime Conventions | Apr 29 - Apr 30, 2023
United States > Maryland > Ocean City > > 21842

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Travis Scott
Birthdays | Apr 30, 1991
Ana de Armas
Birthdays | Apr 30, 1988

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The Manhattan Project Ends with Trinity Test Atomic Detonation | Jul 16, 1945

The Manhattan Project Ends with Trinity Test Atomic Detonation

Milestones | Jul 16, 1945

The Manhattan Project concluded on July 16, 1945, with the Trinity Test, the first successful detonation of an atomic device. Theoretical physicist J. Robert Oppenheimer dubbed the test “Trinity,” inspired loosely by a sonnet by John Donne, “Batter my heart, three person’d God…”

The Trinity Test took place on the plains of the Alamogordo Bombing Range, 210 miles south of Los Alamos, New Mexico, at 5:29 a.m. MDT on July 16, 1945. The year 2023 – when Universal Pictures releases the biopic Oppenheimer, based on the story of The Manhattan Project – marks the 78th anniversary of the Test.

The mushroom cloud from the explosion reached 38,000 feet high and left behind a crater 1.5 miles across. The flash of light from the Trinity Test could be seen 150 miles away and knocked over a man standing five miles away. Extreme heat from the blast turned desert sand to glass.

The Trinity Test is described as a scientific achievement that, in an instant, changed the world forever. Created in the hopes of putting an end to all war, it reshaped the future of all humanity from that moment forward.