One Hundred and Fifty years ago today, July 1, 1858, Charles Darwin and Alfred Russell Wallace read their papers (Darwin first!) describing the Theory of Evolution--the modern world was born.
One hundred years ago today, (in Pacific Northwest time) a mysterious gigantic explosion rocked Siberia, the Tunguska event; estimated to be 1000 times as strong as the atomic bomb that devastated Hiroshima.
Happy cataclysmic July! May yours be less interesting.