Bleach: Thousand Year Blood War is indeed included in the manga. It adds an exciting and crucial chapter to the Bleach universe. The manga version provides detailed visuals and storytelling for this intense arc.
Bleach: Thousand Year Blood War tells of a hidden enemy emerging after a thousand years. This enemy aims to overthrow Soul Society, and the heroes must face great challenges and uncover secrets to save the day.
The Thousand Year Blood War starts at a specific point in the manga, but it's a bit hard to pin down exactly without referring to the specific volumes or chapters.
The start date of the Thousand Year Blood War manga varies depending on when it was first published. You might find this information on manga forums or from official manga sources. It's a highly anticipated part of the series.
The Millennium Dream was an ambiguous question. The search results did not provide any clear information related to the Millennium Dream. Therefore, I don't know what the Thousand Year Dream is.