Some estimates have placed that loss at nearly half in the last forty years. Presbyterian influence, especially through Princeton theology, can be traced in modern Evangelicalism. Balmer says that: In the late 1800s, Presbyterian missionaries established a presence in what is now northern New Mexico. This provided an alternative to the Catholicism, which was brought to the area by the Spanish Conquistadors and had remained unchanged. The area experienced a "mini" reformation, in that many converts were made to Presbyterianism, prompting persecution. In some cases, the converts left towns and villages to establish their own neighboring villages. The arrival of the United States to the area prompted the Catholic church to modernize and make efforts at winning the converts back, many of which did return. However, there are still stalwart Presbyterians and Presbyterian churches in the area. Historically, along with Lutherans and Episcopalians, Presbyterians tend to be considerably wealthier and are better educated (having more graduate and post-graduate degrees per capita) than most other religious groups in United States; a group known as White Anglo-Saxon Protestants (WASPs), they are disproportionately represented in the upper reaches of American business, law, and politics. Canada In Canada, the largest Presbyterian denomination – and indeed the largest Protestant denomination – was the Presbyterian Church in Canada, formed in 1875 with the merger of four regional groups. In 1925, the United Church of Canada was formed by the majority of Presbyterians combining with the Methodist Church, Canada, and the Congregational Union of Canada. A sizable minority of Canadian Presbyterians, primarily in southern Ontario but also throughout the entire nation, withdrew, and reconstituted themselves as a non-concurring continuing Presbyterian body. They regained use of the original name in 1939. Latin America Presbyterianism arrived in Latin America in the 19th century. Mexico The biggest Presbyterian church is the National Presbyterian Church in Mexico (Iglesia Nacional Presbiteriana de México), which has around 2,500,000 members and associates and 3000 congregations, but there are other small denominations like the Associate Reformed Presbyterian Church in Mexico which was founded in 1875 by the Associate Reformed Church in North America. The Independent Presbyterian Church, the Presbyterian Reformed Church in Mexico, and the National Conservative Presbyterian Church in Mexico are existing churches in the Reformed tradition. Brazil In Brazil, the Presbyterian Church of Brazil (Igreja Presbiteriana do Brasil) totals approximately 1,011,300 members; other Presbyterian churches (Independents, United, Conservatives, Renovated, etc.) in this nation