During the eighteenth and nineteenth centuries, most of the Katanga region in what is today the Democratic Republic of Congo was dominated by Luba kings. A powerful secret society known as the mbudye (men of memory) created handheld wooden objects called lukasa (long hand, or claw) as mnemonic aids to maintain oral narratives about fundamental aspects of Luba culture.

According to philosopher Alfred North Whitehead, “Writing was an invention which took about two thousand years to make its effect felt. Do you recall, even in Plato’s dialogues, the discussions are seldom if ever about what the participants have ‘read’ but almost invariably about what they ‘remember’?”

Written in Los Angeles in 1955, the song “Memories Are Made of This” became a number-one hit for Dean Martin. It was a surprise success in Europe, spending four weeks at the top of the UK Singles Chart. A German version, performed by Freddy Quinn and recast as “Heimweh” (“Homesickness”), was the most popular German song of 1956. As “Honvágy-dal” (“The Song of Homesickness”) it became the anthem of the 1956 Hungarian Revolution.

The first written language, Sumerian cuneiform, is believed to date to around 3000 bc. Archaeologists have found evidence that astronomical texts were still being written in cuneiform in the first century of the Common Era; decadent varieties of the language survived to the time of Christ.