100% verified The same day, three eras.
4 July
Contemporary era
1997
Mars Pathfinder lands on Mars
On 4 July 1997, the Mars Pathfinder probe delivered the small Sojourner rover to Mars.
Sources and verification (1)
- Encyclopaedia Mars Pathfinder (Wikipedia) Wikipedia. 4/5
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From the Middle Ages to the Enlightenment
1776
US Declaration of Independence
On 4 July 1776, Congress adopted the Declaration of Independence of the United States.
Sources and verification (1)
- Encyclopaedia Declaration d'independance des Etats-Unis (Wikipedia) Wikipedia. 4/5
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From the Middle Ages to the Enlightenment
1054
Observation of the Crab supernova
On 4 July 1054, astronomers observed the stellar explosion that formed the Crab Nebula.
Sources and verification (1)
- Encyclopaedia SN 1054 (Wikipedia) Wikipedia. 4/5