Māori people peaceful tribes from their productive turangawaewae, such as the Moriori in the Chatham Islands by invading forces from North Taranaki, had a catastrophic effect on these conquered tribes. At the same time, the Māori suffered high mortality rates for new Eurasian infectious diseases, such as influenza, smallpox and measles, which killed an unknown number of Māori: estimates vary between ten and fifty percent. The spread of epidemics resulted largely from the Māori lacking acquired immunity to the new diseases. A huge influx of European settlers in the 1870s increased contact among many of the indigenous people with the newcomers. Te
Indigenous people of Oaxaca remained largely an agriculture-based economy with little development throughout the colonial period, following Mexican independence in 1821 and following the revolution of 1910. By the 1980s and 1990s, Oaxaca was one of Mexico's poorest states. The state, and the indigenous people in particular, had some of the nation's highest rates of illiteracy, malnutrition, and infant mortality. The Oto-Manguean languages are a large family comprising several families of Native American languages, which has not been positively related to any other group of languages. The Oto-Manguean family has existed in southern Mexico at least since 4000 BCE and probably before. The highest