Halley's Comet Makes Its Closest Pass to Earth Ever: 0.03 AU
Halley's Comet swept within 5.1 million kilometers of Earth, its closest recorded approach, blazing across the sky with a tail visible to the naked eye for weeks. Chinese and European chroniclers recorded widespread panic and awe, reinforcing the comet's ancient reputation as an omen of upheaval among medieval populations.
April 10, 837
1189 years ago
Key Figures & Places
What Else Happened on April 10
He arrived in Constantinople with a head full of Greek philosophy and zero patience for compromise. Within months, he was preaching that Mary was merely the mot…
Leo IV. wird als Nachfolger des im Januar verstorbenen Sergius II. zum Papst gewählt.
J. Sterling Morton convinced his fellow Nebraskans to plant over a million trees on this day, transforming the state’s treeless, wind-swept plains. This grassro…
Louis III and Carloman II ascended the throne as joint kings of the Western Franks, inheriting a fractured realm following the death of their father, Louis the …
He arrived with twelve thousand disciples, marching through Nanjing's dust to meet an emperor who wanted peace more than war. Deshin Shekpa didn't just preach; …
Der Neubau der Leipziger Thomaskirche wird vom Bischof von Merseburg, Thilo von Trotha, geweiht.
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