Gretchen is working on historical dates and facts, and she wants to know how items to place in a single memory palace room. Based on the fact that different centuries have different numbers of facts, with many more things to memorize in the recent past than the far distant past, how should a history memory palace be organized to accomodate these changes in quantity of facts over time?

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Music credit: Maurice Ravel’s String Quartet, 2nd movement, performed by the US Army Band.