Astronomy is one of the oldest sciences. It is very exciting because all one has to do is observe. Other than deductions in terms of calculations of time and space (which in astronomy mean one and the same thing), you will enjoy this terrific science. There is every reason to believe that the observation of space and the careful calculations of the address we hold in the expanse of time and space started a long time ago. With the gathered information to date, we can conclusively say we are not the first ones to know or establish that there are billions of stars and planets out there.
There is little-recorded history as to when astronomy was assumed to have started, at least in a serious way. In early days, the observation of the sky and the deductions made thereafter was mainly done using the naked eye. Early cultures which are known to have an appreciation of astronomy included United Kingdom, Egypt, Cambodia among others. Such cultures had stones or large artifacts that had some astronomical purpose. Such symbols also stood to signify seasons of the year or when to plant crops among other important calendar functions.
As civilization evolved and more knowledge on astronomy was gathered, different cultures came to recognize the importance of assembling some observatory stations. Such places included Egypt, Central America, China and Greece. It is during this time that a lot was learnt about planet earth. This generation of astronomers led way for the Ptolemy era. This is when it was discovered that earth was round after all. Other planets and moons revolving such planets were discovered. It was indeed a very exciting time in history.
It was towards the late BC years that Babylonians laid a foundation on which modern astronomy is founded. They are the ones who discovered the Sarus which is the system through which lunar eclipses appear. It is around the 3rd BC that scientists calculated accurately the distance between the sun and our planet. In the middle ages, a lot about the solar system was discovered. Moreover, this was the time when supernovas were explored and explained. Several galaxies were discovered and classified as such.
Modern history is all but exciting. Obviously we could not be where we are today were it not for the hard work and untamed imagination of our forefathers. With leading scientists such as Carl Sagan, we have been able to send Voyager 1 into space where we get to learn amazing things about our universe every other day. We have reached such an advanced level that we are able to see planets billions of years away and currently not humanly reachable. We are able to extrapolate as to the direction our universe together with others is going. Such is the amazing history of astronomy.