Martin Luther wrote the 95 Thesis and posted it on the church's door. <span />
Cultural decay is when a culture no longer holds any value to the youth of the next generation and things are put aside for more interesting trends
Cultural decline is when a culture doesn't develop and leaves the next generation without anything to expand upon or grow from
It is the second one.
Caesar became politically corrupt, which led Brutus to kill him.
It could be any of those but the best answer is the second one.
The Greeks were known to doing it, the earliest Greek known to have mad a drawing of the first map was Anaximander.