Who developed the idea of communism?

Karl Marx was the first philosopher to develop the idea thoroughly, even though communism, as a concept, had existed since ancient times. Marx called one of his four epochs of history Asiatic. This was the earliest epoch and had examples of simple communism in the form of small tribes in which no one owned individual plots of land, everyone worked for the common good of the tribe and everyone partook of the produce of the tribe equally or as needed.