I was mistaken in thinking that you all had timelines already - sorry about that. Timelines can be purchased ready-made, printed online and assembled, or made from scratch. Learn about the concept here:
And here are some timelines for you:
Here's one you can download and print to put into a binder: Basic Book of Centuries - Simply Charlotte Mason
Here are some you can purchase ready-made: History timeline Notebook: my timeline book of world history notebook, Blank pages , from 5000 BC through AD 2024,Book of Centuries, Homeschool ... 104 Pages, 8.5" x 11"IN, for Schools, ...: secrets, little thoughts: 9798768327378: Amazon.com: Books or My Book of Centuries - Simply Charlotte Mason or Wonders of Old: A Blank Timeline Book of World History | Master Book Publishers | 9781683442721 (rainbowresource.com) (my kids use this one)
I made my own using one of these: Amazon.com : Moleskine Cahier Journal, Soft Cover, XL (7.5" x 9.5") Ruled/Lined, Pebble Grey, 120 Pages (Set of 3) : Office Products I'll post pics of mine in the comments so you can see how to do it. Mine is a little complicated, but yours doesn't have to be. To keep it super simple, just let each two-page spread represent 100 years. Write the beginning of the century at the top of the left page and write the end of the century at the top of the right page.
This lady made one with a plain spiral notebook (she doesn't start telling how to do it until about 4 minutes in): How to Make a Charlotte Mason Book of Centuries - YouTube
If anyone needs it, I have an extra moleskine cahier journal that you can have to make your own. The only bad part is that the cover is a little bent. ☹️ Other than that, it's just like new.
In your timeline you can just write dates and the event or you can get fancy and add pictures. It can be your own thing. Use your own style. I want the book to be useful for you. This is something that you can keep for your whole life!