... made during yourreading of Speed Memory. To see just how far you have come, go back and look at the'photograph' of your memory as recorded in the initial memory 157574« Lacquer. .___575. ... will14815. MEMORY SYSTEM FOR DATES IN OURCENTURY 13816. MEMORY SYSTEM FOR IMPORTANTHISTORICAL DATES 14217. REMEMBERING BIRTHDAYS, ANNIVERSARIESAND DAYS AND MONTHS OFHISTORICAL DATES 14418. MEMORY ... It was in this way that he explained the improve-ment of memory and the development of what are known as&apos ;memory traces'. A memory trace is a physical change in thenervous system that...