Quantitative finance started in 1900 with Louis Bachelier 's doctoral thesis Theory of Speculation. Harry Markowitz 's 1952 Ph.D thesis Portfolio Selection and its published version was one of the first efforts in economic journals to formally adapt mathematical concepts to finance.
The Spaniards - Peninsulares, Criollos, and Mestizos. Like the Indians, Spaniards were also diverse in nature and background. Some were soldiers or missionaries directly from Spain. Others came as long time residents of New Spain (Mexico). Distinctions were made between criollos, those born in the Americas, and peninsulares, those born in Spain. Criollos were considered inferior to those who came from the mother country. Those persons of mixed race - Indian and Spaniard - known as mestizos, were one of the most rapidly growing groups in frontier society.
Mexicans (Spanish: Mexicanos) are the people of the United Mexican States, a multiethnic country in North America. Mexicans can also be those who identify with the Mexican cultural or national identity. The Mexica founded Mexico-Tenochtitlan in 1325 as an altepetl (city-state) located on an island in Lake Texcoco, in the Valley of Mexico. It became the capital of the expanding Mexica Empire in the 15th century, until captured by the Spanish in 1521.