Taoism or Daoism is a type of belief, or a way of thinking about life.  Some consider it a religion. It is at least 2,500 years old and it comes from China. Daoism is now said to be a philosophy. Tao or Dao, 道  is the name of the force or the "Way" that Daoists believe makes everything in the world. Daoists think that words cannot be used to correctly describe the Dao. The very first line of the Dào Dé Jīng (道德经), the most important text in Taoism, says "the Way that can be explained in words is not the true Way." There are many other sacred writings by the teachers of Daoism.

Instead of spending a lot of time trying to explain what the Dao is, Daoists focus on living a simple and balanced life in harmony with nature. This is one of the most important principles in Daoism. Daoists also believe that conflict is not good and that if you have a problem with something, it is better to find a way around it. (Wu Wei)

Daoism first showed up in writing in China about 2000 years ago. Laozi, or Lao Tzu (老子). He is assumed to have written Dào Dé Jīng.

Edited from: https://simple.wikipedia.org/wiki/Taoism