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The day of the first published photograph of a black hole – level 3
10-04-2019The first black hole that was photographed is located at the...
The day bungee jumping was invented – level 2
01-04-1979Bungee jumping was invented by a group of students from the...
The day the Iran hostage crises started – level 3
04-11-1979In 1979, a revolution culminates in Iran, ending the Shah’s rule...
