Arabic-language place names of Palestine were replaced with Hebrew-language place names throughout different periods: under the British Mandatory Palestine regime; after the establishment of Israel following the 1948 Palestinian exodus and 1948 Arab–Israeli War; and subsequently in the Palestinian territories occupied by Israel in 1967. A 1992 study counted c.2,780 historical locations whose names were Hebraized, including 340 villages and towns, 1,000 Khirbat (ruins), 560 wadis and rivers, 380 springs, 198 mountains and hills, 50 caves, 28 castles and palaces, and 14 pools and lakes. The erasure of Palestinian geography is considered part of the Palestinian Nakba.