Ilchester, a decayed village of Somersetshire, on the Yeo, 5 miles NW. of Yeovil. Supposed to be the Ischalis of Ptolemy, it was the principal station of the Romans in this region, and was a flourishing town in Saxon times. Numerous Roman remains have been found here. Ilchester is the birthplace of Roger Bacon. Till 1832 it returned two members. Pop. 683.
Île-de-France, one of the old provinces of France, having Paris as its capital, and now mostly comprised in the departments of Seine, Seine-et-Oise, Aisne, Seine-et-Marne, Somme, and Oise. In the middle of the 9th century it was made a dukedom, and became one of the four constituent fiefs of the French monarchy. The second duke, Odo, commonly called Count of Paris, was crowned king of France in 888. His successors contended for some years for the throne of France; one of them, Hugh Capet, founded in 987 the Capetian dynasty (see FRANCE). Île-de-France was formerly the name of Mauritius (q.v.).
Îletzk, a town in the Russian government of Orenburg, near the confluence of the Ilek with the Ural. Pop. 5769. Close by is the richest salt-bed in Russia, yielding close upon 21,700 tons of salt annually. It was discovered by Pallas in 1769, and visited by Murchison in 1850.