In our Enrichment Studies lesson plan guides we schedule Scripture memorization daily using our Scripture memory system, and poetry memorization once a week. And, yes, Bible verses and poetry are memorized by repeated readings of what is being memorized. We encourage moms to help their children to recite poetry in a pleasing voice, not in a sing-song voice.
The Book of Centuries is helpful for making the connections of events and people in history. A family Book of Centuries is recommended until students are about 4th grade, then they have their own personal Book of Centuries to record historical dates and people that are important to them. They use the same book year after year so that as they read about events and people in history, poets, authors, artists, composers, scientists, etc. they enter them in their Book of Centuries and see the other events and people that have already been entered, making connections of who lived at the same time and what was happening in the world at that time. We have both a basic, free Book of Centuries and a more formatted, for purchase My Book of Centuries available in the SCM Bookstore.