At 0:37, the video mentioned the earliest format of the book–codex. However, as early as the early 2nd century, there is evidence that a codex—usually of papyrus—was being used by Christians (Wikipedia).
At 0:50, the video introduces the invention of movable type between 1045-1058 in China. In fact, the invention of movable type can be traced back a little earlier, in around AD 1040 by Bi Sheng.
I don’t know where they source the time range for earliest paper. Paper was invented in Western Han Dynasty (202 BC- 8 AD), so the time introduced in the video falls into this period.
Thank you for sharing sources!