The planet Earth is 5 billion years old (a billion is one thousand million). Life first evolved on Earth around 4 billion years ago. The species Homo Sapiens is around 1 million years old. Imagine that the 5 billions years of Earth's existence is represented by one single year starting on January 1'st and ending December 31'st.
(a) On what day and roughly at what time on that day do Homo Sapiens first appear?
(Please enter month (write out the word), then date, then time, then `am' or `pm') What date will it be? , : (b) The earliest civilizations of which we have records are no more than 10,000 years old. What date and time does this corresond to?