If you prefer, you can put your historical timeline up on the wall instead of in a book. I have a long narrow hallway in my house and for years it graced a massive timeline. Then one day a friend's little child decided to tear it completely down while her mom and I chatted away sipping tea in the dining room.
I never did put the timeline back up. Instead, we went with the Book of Centuries. Both have their advantages and disadvantages. I like the visibility of the wall timeline. There was all of history, from Creation to today, right there before our eyes. Plus, it reminded us, every time we walked down the hallway to the bedrooms, to keep it up-to-date. And it's more of a family affair. If you do a wall timeline, just make sure to put it up high, out of reach of little hands.
The Book of Centuries can be tailored to a specific child or unit of study. It can be held in your hand and savored. It can be saved for future posterity, moved from house to house, taken to co-op class, and doesn't require wall space in your house.
If you'd like to try a wall timeline, I have free templates to make your own at my website. Just click on Downloads and then scroll down.
Tomorrow, I'll post some ideas on what to put on your wall timeline or in your Book of Centuries.