Each year my students create an ABC book to help us review for our end of year standardized test. Instead of A is for Apple - we do A is for Apartheid (see example).
I've set up six learning stations that focus on: Age of Exploration, The Enlightenment, The Age of Revolutions, Imperialism, World Wars, and the Cold War. Your students will cover around 4 letters for each station to complete their ABC Review.
This project is done electronically in my classroom, but can easily be done with paper and crayons :)