Why should we not just blindly trust science?
Alchemy, for one.
Phlogiston Chemistry, for another.
Prior to the 14th Century Astronomers thought the Earth was the center of the universe, because, well, that's what the church wanted, and spent hundreds of years of scientific research on the theory of Epicycles, trying to reconcile the Earth centered model with the observed motions of the planets. Epicycles hold the record for longest running scientific goof in history!
17th Century doctors thought rubbing chicken dung into your scalp would cure baldness! They also thought leeches sucked disease out of patients.
18th Century Geologists thought the Earth was 6000 years old, because, well, that's what the church wanted!
Prior to the 1950s, scientists thought proteins carried our heredity.
Until the 19th Century, doctors thought infection was caused by bad air, from which we get the term "Malaria."