About 180 km² (70 mi²) in area, the Jade was largely created by storm floods during the 12th and 16th centuries. During this period it was connected in the East to the river Weser. This connection was closed between 1721 and 1725 by dikes reconnecting Butjadingen to the mainland as a peninsula.
In the West the Jade extended far into the Frisian peninsula. From the early sixteenth century a number of dikes were built against the storm floods and to arable land. The main dike, Ellenser Damm, was built between 1596 and 1615 based on an agreement between the principalities of East Frisia and Oldenburg.
The Jade is a part of the German Wadden Sea National Parks.
The port of Wilhelmshaven is on the western shore of the bay.
- Karl-Ernst Behre: Das Moor von Sehestedt − Landschaftsgeschichte am östlichen Jadebusen. Vol. 21 of the Reihe Oldenburger Forschungen
- David Blackbourn: Die Eroberung der Natur - Eine Geschichte der deutschen Landschaft. Aus dem Englischen von Udo Rennert, 1. Auflage, München, Deutsche Verlags-Anstalt, 2006, ISBN 978-3-421-05958-1
- Eilert Schimmelpenning: Der Jadebusen und das Schwarze Brack, Schortens, 2004, ISBN 3-936691-21-5
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