Explorer 1 Launches: America's First Satellite Reaches Orbit
Explorer 1 lifted off to reveal the Van Allen radiation belts, proving Earth is surrounded by a dangerous zone of charged particles that forced engineers to redesign future spacecraft shielding. This discovery immediately shifted space mission planning from simple orbital mechanics to survival against invisible cosmic hazards.
January 31, 1958
68 years ago
Key Figures & Places
What Else Happened on January 31
Silvester I ascended to the papacy, inheriting a church newly empowered by Emperor Constantine’s Edict of Milan. His long tenure oversaw the construction of the…
A whisper of divine authority in a world still trembling from Constantine's recent Christian revolution. Sylvester didn't just inherit a church—he stepped into …
Blood splattered the frozen Swedish landscape. King Sverker thought he'd crush his young rival decisively—instead, Prince Eric's forces decimated his army in a …
mariage de la comtesse Béatrice de Provence avec Charles Ier d'Anjou, frère de Saint Louis.
The Mudéjar fighters knew their end was near. Cornered in Murcia after two years of resistance, they'd held out against impossible odds—defending a city where t…
Der Rat der Stadt Bern und Schultheiß Adrian I. von Bubenberg erteilen an Diebold Schilling den Älteren den Auftrag für eine Berner Chronik.
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