These improvisations, celebrating 2000 years, were begun in 1999. Three series with various versions have been drawn. Each version presents a different series of two thousand improvisations, each individually drawn with pen and ink, line for line, without any repetitions. The detailed originals can be hypnotizing as the eye wanders from one unit to the next discovering unexpected form inventions from one rectangle to the next. The algorithm dates from around 1990.