Harrington, Sion H., III

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RT @NASA: We're saddened by the passing of celebrated #HiddenFigures mathematician Katherine Johnson. Today, we celebrate her… https://t.co/51aB50TJ2I — 22 hours 42 min ago
On Feb. 24, 1868, Andrew Johnson became the 1st president to be impeached for high crimes & misdemeanors. Johnson,… https://t.co/4khxxr4q00 — 1 day 9 min ago
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