turning points
25 turning points in Earth history
our earth has existed for 4.5 billion years and has been busy for generations. Here are 25 milestones in Earth’s history. From the leap of evolution to the devastating impact of asteroids on the earth, these milestones have become turning points to change our world. the earth was born 4.5 billion years ago the earth grew up in a cloud of dust and rocks around the young sun. The earth was formed when these rocks collided. In the end, they have enough mass to attract other rocks with gravity, and…