This is the first comprehensive study of an ingenious number-notation from the Middle Ages that was devised by monks and mainly used in monasteries. A simple no

"As gripping as a good thriller." --The Washington Post Unpack the science of secrecy and discover the methods behind cryptography--the encoding and decoding of

Insights from the history of numerical notation suggest that how humans write numbers is an active choice involving cognitive and social factors. Over the past

This is the first investigation of one of the main interests of astronomy in Islamic civilization, namely, timekeeping by the sun and stars and the regulation o

Francis Daniel Pastorius was one of the first German settlers to Pennsylvania and a touchstone figure of German-American cultural heritage. This monumental anth