What is History of The Gith?

With Balders Gate 3 coming out I thought it would be a good time to explore the Gith from D&D. What is a Gith? What is the difference between a Githyanki and a Githzerai? What are their origins? Who made them for DND? And what do they have to do with Game of Thrones? I answer all of these questions in this video.