3 ms·
https://www.explainxkcd.com/wiki/index.php/893:_65_Years https://www.explainxkcd.com/wiki/index.php/893:_65_Years
by stblack 10y ago
https://www.explainxkcd.com/wiki/index.php/893:_65_Years https://www.explainxkcd.com/wiki/index.php/893:_65_Years