When was Earth discovered or began?
In the year 1515, Nicolaus Copernicus theorized that the Earth was a planet and discovered the idea of a heliocentric solar system, a system in which all planets revolved around the sun.
Who discovered Earth?
What was another common name for earth?
Earth has alot of names such as terra firma, macrocosm, globe,and terrestrial sphere.The most common name hat Earth has is Big Blue Marble.But the name is not all that common but it's used more that the other names.