Aes Sedai
The Aes Sedai of the White Tower have historically represented a large group of individuals capable of channelling the One Power. In the Age of Legends, both men and women were treated as equals, but since the Breaking of the World only women–with access to the untainted female half of the Source (saidar)–have been Aes Sedai.
Recently, it has come to light that many women in other societies have the ability to channel; these include the Windfinders among the Atha'an Miere (the Sea Folk) and the Wise Ones of the Aiel. Also, the "Kin" who were discovered in Ebou Dar, not only can channel but some have trained in the White Tower to be Aes Sedai, although for various reasons they did not complete their training. Kept extremely secret among the Seanchan is the knowledge that the sul'dam who control the leashed damane can also channel.
Read more about this topic: Major Wheel Of Time Characters