FUJAIRAH, UNITED ARAB EMIRATES—According to a report in Gulf News, the Al Badiyah Mosque may be more than 150 years younger than had been previously believed. Geochemist Julie Retrum of the Petroleum Institute in Abu Dhabi and archaeologist Michele Ziolkowski sent samples of the farush blocks used to construct the mosque to the University of Minnesota, where trace amounts of uranium preserved in the coral were tested with a technique known as uranium-thorium radiometric dating. The scientists also tested blocks from two coastal watchtowers. The test results suggest the mosque was built in the sixteenth century. Earlier excavations at the site recovered charcoal fragments dated to between 1450 and 1655, and pottery and porcelain fragments dated to the sixteenth century. Retrum and Ziolkowski think the mosque was probably standing by 1599, when the Portuguese controlled trade in the Arabian Sea, and Portuguese documents refer to the presence of a fort in Bidiya. “This research has helped to throw new light on the ages of some of Fujairah’s historic buildings,” Ziolkowski said. To read about a recent discovery in the area, go to “Bronze Age Bling.”