(1) should be your answer because Christopher Columbus discovered America in 1492
Answer:
it's a living document
Explanation:
it is being changed all the time, it can changes with the times of an era--look at prohibition and how it failed
It leaves (leaf=leaves haha)
Without any doubt, the number system.especially our understanding of zero.
Answer is 23.
If that answers your question make sure to mark as brainliest!
-procklown