When was the first book of the series that has a book containing 122 chapters published?
The Stormlight Archive: The Stormlight Archive is an ongoing epic fantasy series written by American author Brandon Sanderson. The Stormlight Archive:  Planned as the first of ten books, "The Way of Kings" was published on August 31, 2010 by Tor Books in the United States. Oathbringer:  "Oathbringer" will consist of one prologue, 122 chapters, an epilogue and 14 interludes.
August 31, 2010