Coclanis, Peter A.

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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 — 1 day 1 hour 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 3 hours ago
Find info on Avery Co in the NCpedia. https://t.co/ANof79v6GE https://t.co/0SBYvbpicI — 2 days 4 hours ago