The Earth is 4.54 billion years old; 3.8 billion years ago, the very first life form came into existence; 225 million years ago, dinosaurs came on the scene; and man took his first steps in Africa 200,000 years ago. How do we know this to be true? Science. Carbon-14 and other radioisotopes are used to measure the age of fossils, rocks, and other materials that make up Earth's geologic history.
This is a wonderful story -- How An Ohio Housewife Flew Around The World, Made History, And Was Then Forgotten Jerrie Mock was a 38-year-old Ohio housewife from Columbus, Ohio, when, 50 years ago this week, she accomplished what Amelia Earhart is famous for having failed to do. But in the decades since, as Mock’s life began to unravel, history all but forgot the pilot who made it.
The Sator Square, one of the earliest known palindromes is a square that reads the same forwards, backwards, upwards and downwards, dating back as far back as 2000 years ago in the ruins of Pompeii. It's meaning has been an enigma, although scholars agree on the individual words. According to John T. Cullen, this meme could mean `God holds the plough, but you turn the furrows'. #Sator_Square #Palindrome