[lurquer]

An assertion that X happened in the past is fundamentally different from an assertion that X exists.

The certitude one can achieve through evidence for (or against) the claim that the Earth is presently flat, can never be obtained for an assertion regarding a past event.

You're mixing apples and oranges.

[nitrogen]

This video, and the others on the Qualiasoup channel, cover the endgame of this type of discussion pretty well: https://youtu.be/KayBys8gaJY