| May 9th 1942 | | 68th Preakness: Basil James aboard Alsab wins in 1:57
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| May 9th 1943 | | Rotschild-Haddassh University Hospital opens
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| May 9th 1943 | | 5th German Pantser army surrenders in Tunisia
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| May 9th 1944 | | 1st eye bank opens (NYC)
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| May 9th 1944 | | Country singer Jimmie Davis becomes governor of Louisiana
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| May 9th 1944 | | Dutch resistance fighter Gerard Musch arrested
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| May 9th 1944 | | Joe McCarthy returns as Yankee manager after an illness
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| May 9th 1944 | | Russians recapture Crimea by taking Sevastopol
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| May 9th 1945 | | Victory celebration at Red Square
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| May 9th 1945 | | Norwegian nazi collaborators Vidkun Quisling arrested
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| May 9th 1945 | | New balata ball used in baseball, 50% livilier
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| May 9th 1945 | | Nazi propagandist Max Blokzijl arrested
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| May 9th 1945 | | Jersey liberated from nazis
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| May 9th 1945 | | Czechoslovakia liberated from Nazi occupation (Natl Day)
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| May 9th 1946 | | King Victor Emmanuel III of Italy abdicates, replaced by Umberto
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