Answer by cosmo
Answer by Timothy
The 1st official calendar was much more than 6,000 years old and comes from Mesopotamia. It is exactly where we get the monthly zodiac, often credited to the greeks. Nevertheless, it was utilised by the babylonians and the akkadians ahead of them. Totally formed by this time, the origins stay conjecture. An older IE men and women must have created it 1st.
Answer by Paula
Most interesting is this :
It is a hands off science.
Every thing is done by observation. The observing these days being accomplished in all frequencies of the electromagnetic spectrum.
The only exception is the collection of some moon rocks.
The discoveries basically began with the 1st use of the telescope by Galileo in 1610.
Despite the limitation of “hands off” we have learned many factors that would have amazed our ancestors (including Galileo)..