I might be posting this later than usual, but I'm posting!
I have a timeline in my class that is super simple and basic!
The only things I am using is a sentence strip (cut up), a sharpie to write the month, and then a paper from a kid for whatever subject(s) I want to "remember".
Super simple and easy! And my kids love referring back to what we studied in each month.
A few more pictures are up over on my blog if you want to see more!