Earth Day is a day designed to inspire awareness and appreciation for the Earth's environment. It was founded by U.S. Senator Gaylord Nelson as an environmental teach-in held on April 22, 1970 and is celebrated in more than 175 countries every year.
If you are a Christian, then the first day of the earth was Monday
the rotation of Earth on its axis.
That is 1 day on Jupiter but about 43% of an Earth day.
Because the earth rotates, when it is day in your part of the world the earth is facing the sun. When its night it faces away from the sun.
The revolution of Earth gives us day and night. This is when the Earth rotates on its axis, changing the time of day, as well as the seasons.
If you are a believer, then God did but if you are not, then nobody did. The radius of the earth existed and therefore ots radius did before there was any form of life on earth to invent it.
That the earth was round
donut day muffin day charter day
its really popular
iT Was on a day of the week. There u go
A long long long time ago.
Aristotle invented/descovered that the earth was not flat :p
kind of, its on wikipedia
concept of zero, algebra, discovered that earth rotates on a axis around the sun and, that the earth is round.
1742
They created the predessessor day to Halloween.
1775