[Flag_This]

"If a totally new star that was unfamiliar to you and to the society suddenly appeared just over the horizon - this would be a significant event. Especially with it being so bright, even on the horizon."

For the life of me, I can't remember the name of the book, but it starts out with a cry echoing across the Andes because a star that was supposed to rise didn't.

[JCBreckenridge]

Well, I did not know that Sirius was not visible at this latitude for a period of nearly a thousand years. Then it reappeared around 9100 for a very short period. I think that would leave an impression on the society at the time!