Science was invented in the middle ages

   The Ancients did not have science.  The Hittites were the last to invent/discover something important, namely how to smelt iron back about 800 BC.  The Romans in 200 AD did not have any materials or tools that the Hittites did not have a thousand years before. 

Science is a way of looking at the world.  Science takes facts, from observations, and from experiments, and forms theories that are supported by those facts.  Science does not take ancient authors writings or popular ideas into account, only facts.  Roger Bacon spelled out how to do science in the 1300s.  Science has been very successful.  In the last thousand years we have developed gun powder, printing, electric telegraph, steam railroad, radio and TV, automobiles, aircraft, and a whole raft of  stuff that makes modern life a whole bunch more comfortable than it used to be.

When reading about scientific discoveries you should look for the facts behind the discoveries.  If there are no facts given in what you read, it is not science.

Science is dynamic, it keeps finding new stuff.  When I took geology in college, many years ago, the professor did not believe in plate tectonics.  Now, 60 years later, everybody knows about and believes in plate tectonics.  New science starts small, with perhaps just one article in one journal.  At first few people know of the new science and it is called “tentative” (maybe true maybe not).  As time goes on more and more people learn of the new science and it becomes widely known and accepted.  When it gets written into college textbooks you can say the idea has become generally accepted.  Acceptance is rarely one hundred percent.  For instance we still have people who believe the earth is flat.  When you are looking at science you need to be aware that not all the ideas called scientific are generally accepted.