What is a timeline?
A timeline is a representation of before the current era, and the current era. Timelines are helpful for a few reasons. Some of them being to show when something happened, and when it’ll happen again. An example we can look at is an election timeline for the USA. Every 4 years, there’s an election.This timeline can tell us when something will happen, and when it happened in the past.
Hope this helps, take care!