Timeline
1948 - First Arab-Israeli War
1948 - 1967 - Jordanian annexation
1967 - Six Day War
1976 - Qarne Shomron, the first settlement in Wadi Qana, is established
1979 - Wadi Qana is declared a closed military zone, the decision is repealed after popular protest
1980 - Establishment of Yakir and Ma'ale Shomeron settlements
1982 - Establishment of Emmanu'el settlement
1983 - Wadi Qana is declared an Israeli nature reserve
1985 - Establishment of Nofim settlement
1992 - Settlements begin piping large amounts of sewage into the valley
2001 - Establishment of Havat Yair settlement
2005 - Settlements begin pumping sewage underground
2007 - Establishment of Nof Qana settlement
2010 - Establishment of Elmatan settlement
2011 - Israeli Military uproots over 1000 olive trees
2012 - Israeli military uproots over 1400 olive trees
2013 - Israeli military uproots over 2000 olive trees
2014 - Israeli military uproots over 1000 olive trees