WHAT IN HISTORY SEEMS LIKE IT MADE THINGS CHANGE DRASTICALLY?

ATOMIC EXPLOSIONS OR THE WEATHER CHANGING FROM THE EXPLOSIONS OR SPACE EXPLORATION FROM WHOMEVER OR COULD IT BE TIME DISPLACEMENT BY A COMBINATION OF OTHER FACTORS INCLUDING THE SUPER NATURAL WHAT IDEAS DO YOU HAVE THAT A SIMPLE MIND SUCH AS MY SELF COULD UNDERSTAND...AND YOU MAY USE #S IF YOU WISH