Jalousie window Jalousie window A jalousie window (, ) or louvre window (Australia, New Zealand, Pacific Islands, Southeast Asia, United Kingdom) is a window composed of parallel glass, acrylic, or wooden louvres set in a frame. The louvres are joined onto a track so that they may be tilted open and shut in unison to control airflow, usually by turning a crank. Jalousie is the French word for jealousy. It originated in 18th century France from the Italian word "geloso", which means jealous, or screen, as in to screen something from view. Supposedly because of their slatted louvres, jalousie windows protect the
Bay of All Saints area with an average depth of . The Paraguaçu River travels to empty into the bay and the coastal lowlands of the Reconcavo Basin are at its mouth. It contains 91 islands, the largest being Itaparica Island at its entrance. The Italian explorer Amerigo Vespucci was the first European to visit the bay, during his second expedition to the Americas. He entered the bay on All Saints' Day (November 1), 1501. He named the of after the date and his parish church in Florence, San Salvatore di Ognissanti. Initially, the bay, its principal settlement, and the captaincy around it all