British Museum group of stone reliefs from the excavations of Max von Oppenheim at Tell Halaf that was purchased in 1920. More material followed from the excavations of Max Mallowan at Chagar Bazar and Tell Brak in 1935–1938 and from Woolley at Alalakh in the years just before and after the Second World War. Mallowan returned with his wife Agatha Christie to carry out further digs at Nimrud in the postwar period which secured many important artefacts for the museum. The collection of Palestinian material was strengthened by the work of Kathleen Kenyon at Jericho in the 1950s and the acquisition in
Timeline of the Assyrian Empire had been installed by his father, but succeeded in defeating him, repelling Babylonian attempts to invade Assyria, counterattacking and appropriating Babylonian territory in the process, thus further expanding Assyria. The successor of Enlil-nirari, Arik-den-ili (c. 1307–1296 BC), consolidated Assyrian power, and successfully campaigned in the Zagros Mountains to the east, subjugating the Lullubi and Gutians. In Syria, he defeated Semitic tribes of the so-called Ahlamu group, who were possibly predecessors of the Arameans or an Aramean tribe. He was followed by Adad-nirari I (1295–1275 BC) who made Kalhu (Biblical Calah/Nimrud) his capital, and continued expansion to the northwest, mainly at