local Māori population fell (jan 1, 1820 – jan 1, 1840)
Description:
The reasons included fighting between different groups of Ngāi Tahu, raids by the Ngāti Toa chief Te Rauparaha from 1830 to 1832, and the impact of European diseases, especially measles and influenza, from which hundreds of Māori died.Added to timeline:
Date:
jan 1, 1820
jan 1, 1840
~ 20 years