<P> During the war Mexican - American community organizations were very active in patriotic efforts to support American troops abroad, and made efforts to support the war effort materially and to provide moral support for the young American men fighting the war, especially the young Mexican - American men from local communities . Some of the community projects were cooperative ventures in which members of both the Mexican - American and Anglo communities participated . Most efforts made in the Mexican - American community, however, represented localized American home front activities that were separate from the activities of the Anglo community . Mexican - American women organized to assist their servicemen and the war effort . An underlying goal of the Spanish - American Mothers and Wives Association was the reinforcement of the woman's role in Spanish - Mexican culture . The organization raised thousands of dollars, wrote letters, and joined in numerous celebrations of their culture and their support for Mexican - American servicemen . Membership reached over 300 during the war and eventually ended its existence in 1976 . </P> <P> Heavy government spending during World War II revitalized the Arizona economy, which was still based on copper mining, citrus and cotton crops and cattle ranching, with a growing tourist business . </P> <P> Military installations peppered the state, such as Davis - Monthan Field in Tucson, a main training center for air force bomber pilots . Two relocation camps opened for Japanese and Japanese Americans brought in from the West Coast . </P> <Table> <Tr> <Th_colspan="4"> Historical population </Th> </Tr> <Tr> <Th> Census </Th> <Th> Pop . </Th> <Th> </Th> <Th>% ± </Th> </Tr> <Tr> <Td> 1860 </Td> <Td> 6,482 </Td> <Td> </Td> <Td>--</Td> </Tr> <Tr> <Td> 1870 </Td> <Td> 9,658 </Td> <Td> </Td> <Td> 49.0% </Td> </Tr> <Tr> <Td> 1880 </Td> <Td> 40,440 </Td> <Td> </Td> <Td> 318.7% </Td> </Tr> <Tr> <Td> 1890 </Td> <Td> 88,243 </Td> <Td> </Td> <Td> 118.2% </Td> </Tr> <Tr> <Td> 1900 </Td> <Td> 122,931 </Td> <Td> </Td> <Td> 39.3% </Td> </Tr> <Tr> <Td> 1910 </Td> <Td> 204,354 </Td> <Td> </Td> <Td> 66.2% </Td> </Tr> <Tr> <Td> 1920 </Td> <Td> 334,162 </Td> <Td> </Td> <Td> 63.5% </Td> </Tr> <Tr> <Td> 1930 </Td> <Td> 435,573 </Td> <Td> </Td> <Td> 30.3% </Td> </Tr> <Tr> <Td> 1940 </Td> <Td> 499,261 </Td> <Td> </Td> <Td> 14.6% </Td> </Tr> <Tr> <Td> 1950 </Td> <Td> 749,587 </Td> <Td> </Td> <Td> 50.1% </Td> </Tr> <Tr> <Td> 1960 </Td> <Td> 1,302,161 </Td> <Td> </Td> <Td> 73.7% </Td> </Tr> <Tr> <Td> 1970 </Td> <Td> 1,745,944 </Td> <Td> </Td> <Td> 34.1% </Td> </Tr> <Tr> <Td> 1980 </Td> <Td> 2,718,215 </Td> <Td> </Td> <Td> 55.7% </Td> </Tr> <Tr> <Td> </Td> <Td> 3,665,228 </Td> <Td> </Td> <Td> 34.8% </Td> </Tr> <Tr> <Td> 2000 </Td> <Td> 5,130,632 </Td> <Td> </Td> <Td> 40.0% </Td> </Tr> <Tr> <Td> </Td> <Td> 6,392,017 </Td> <Td> </Td> <Td> 24.6% </Td> </Tr> <Tr> <Td_colspan="4"> Sources: 1910 - 2010 </Td> </Tr> </Table>

Who were the first known inhabitants of arizona