The frequency of April Fools' hoaxes sometimes makes people doubt real news stories released on April 1.
The 1946 April Fools' Day tsunami in Hilo, Hawaii.The April 1, 1946 Aleutian Island earthquake tsunami that killed 165 people in Hawaii and Alaska resulted in the creation of a tsunami warning system, the Pacific Tsunami Warning Centre, established in 1949 for Pacific Ocean countries. The tsunami in question is known in Hawaii as the "April Fools' Day Tsunami" due to people drowning because of the assumptions that the warnings were an April Fools' prank.
The death of King George II of Greece was on April 1, 1947.
The AMC Gremlin was first introduced on April 1, 1970.
In 1979, Iran declared April 1 its national Republic Day. Thirty-one years on, this continues to be mistaken for a joke