An historical inquiry concerns Crown acts and omissions up until September 1992. Most of the Tribunal’s 37 historical inquiries have been completed, with just 3 remaining, the Porirua ki Manawatu District Inquiry, the Reconvened Muriwhenua Land inquiry and the North-eastern Bay of Plenty District Inquiry. The Waitangi Tribunal is currently writing final reports for the Taihape: Rangitīkei ki Rangipō District Inquiry and for the Te Paparahi o Te Raki (Northland) District Inquiry. The Tribunal’s historical inquiries can cover many issues including sovereignty claims, Native Land Court claims, Crown land purchasing claims, Māori education, the loss of te reo Rangatira, environmental claims, waahi tapu claims, public works takings, healthcare and many others.