(c.1267–1337), Italian painter; full name Giotto di Bondone. He introduced a naturalistic style showing human expression. Notable works include the frescoes in the Arena Chapel, Padua (1305–8), and the church of Santa Croce in Florence (c.1320).
A European space probe which photographed the nucleus of Halley's comet in March 1986.
We take a look at several popular, though confusing, punctuation marks.