| Today in History |
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1967 ‐
Tens of thousands of anti-Vietnam War protesters march on the Pentagon, besieging the military headquarters for two days
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1923 ‐
1st planetarium opens at Deutsche Museum in Munich
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1915 ‐
1st transatlantic radiotelephone message, Arlington, Va to Paris
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1869 ‐
1st shipment of fresh oysters comes overland from Baltimore
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1824 ‐
Joseph Aspdin patents Portland cement (Yorkshire, England)
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