Or maybe they were smart enough to not know the world was going to end just because a guy didn't finish a calender for another billion years.
that little comic strip you are all referring to was a comic strip... a joke

the mayans specifically made this calendar and it is complete. there isnt just some 1 big one in a ruin... they had many of these.
they themselves claimed to have lived through at least 4 historically recorded cycles of this calendar. so clearly they are not claiming the end of the world, as the world should have ended at least 4 times now.
so you are stupid for not knowing this, as it is common knowledge.
everyone that is trying to downtalk the end of the world are the handicaps. because no one believes its ending.