Pluto Discovered: Tombaugh Expands the Solar System
Clyde Tombaugh spots a moving speck on photographic plates from January and identifies it as the ninth planet. This discovery expands our solar system's known boundaries and launches decades of debate about planetary classification that continues today.
February 18, 1930
96 years ago
Key Figures & Places
What Else Happened on February 18
The Kali Yuga began as the era of spiritual decline following the departure of Krishna from the earthly realm. This transition into the final age of the Hindu c…
The Hindu calendar marks this as the moment Krishna left Earth. Kali Yuga — the age of darkness and discord — began at midnight between February 17 and 18, 3102…
Frederick II got Jerusalem back by speaking Arabic with the Sultan over dinner. No battle. No papal blessing — the Pope had excommunicated him. Al-Kamil and Fre…
Dovmont of Pskov routed the combined forces of the Livonian Order and Danish Estonia on the frozen Rakvere River. This decisive victory halted the Order’s eastw…
Dovmont of Pskov shattered the Livonian Brothers of the Sword at the Battle of Rakvere, halting their eastern expansion into Russian territories. This decisive …
Emperor Amda Seyon I launched his military campaigns into the southern Muslim provinces, aggressively expanding the Solomonic dynasty’s reach. This push consoli…
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