"Tanganyika in '98, Cairo in 1812, Florence in 1492"
Tanganyika was a colony in German East Africa from about 1885 to 1918. It has since been divided into Rwanda, Burundi, and Tanzania. Cairo is the capital of Egypt and the largest city in the Arab world. Florence is the capital of the Italian region of Tuscany, in north-central Italy, and a great center of religion and the arts. At least two of the dates are resonant in U.S. or North American history, but they appear to have been chosen and matched with old world locations somewhat at random, to illustrate how far one may travel afield in library research (although the powerful patron of Michelangelo, Leonardo, and Botticelli -- Lorenzo de’ Medici -- died in Florence in 1492).