Darwins idea about evolution was viewed as something controversial because it went against the religious aspects of life. As you know, it is said God created man all those years ago in the same image we are today. And when a scientist comes along to a very religious society and says, "Hey guys, I have proof that we have evolved from other species and our ancestors werent like us.", he wouldn't seem to draw a crowd. Many viewed him as a blasphemer as well.
