Answer the question at the end by quoting:

The Olmecs were the earliest known major civilization in Mexico following a progressive development in Soconusco. They lived in the tropical lowlands of south-central Mexico, in the present-day states of Veracruz and Tabasco. It has been speculated that the Olmecs derive in part from neighboring Mokaya or Mixe-Zoque. The Olmecs flourished during Mesoamerica's formative period, dating roughly from as early as 1500 BCE to about 400 BCE. Pre-
The beginnings of Olmec civilization have traditionally been placed between 1400 and 1200 BCE. Past finds of Olmec remains ritually deposited at El Manati shrine (near San Lorenzo) moved this back to "at least" 1600-1500 BCE. It seems that the Olmec had their roots in early farming cultures of Tabasco, which began between 5100 BCE and 4600 BCE. These shared the same basic food crops and technologies of the later Olmec civilization.  What is today called Olmec first appeared fully within the city of San Lorenzo Tenochtitlan, where distinctive Olmec features occurred around 1400 BCE. The rise of civilization was assisted by the local ecology of well-watered alluvial soil, as well as by the transportation network provided by the Coatzacoalcos River basin. This environment may be compared to that of other ancient centers of civilization: the Nile, Indus, and Yellow River valleys, and Mesopotamia. This highly productive environment encouraged a densely concentrated population, which in turn triggered the rise of an elite class. The elite class created the demand for the production of the symbolic and sophisticated luxury artifacts that define Olmec culture. Many of these luxury artifacts were made from materials such as jade, obsidian, and magnetite, which came from distant locations and suggest that early Olmec elites had access to an extensive trading network in Mesoamerica. The source of the most valued jade was the Motagua River valley in eastern Guatemala, and Olmec obsidian has been traced to sources in the Guatemala highlands, such as El Chayal and San Martin Jilotepeque, or in Puebla, distances ranging from 200 to 400 km (120-250 miles) away, respectively.  The state of Guerrero, and in particular its early Mezcala culture, seem to have played an important role in the early history of Olmec culture. Olmec-style artifacts tend to appear earlier in some parts of Guerrero than in the Veracruz-Tabasco area. In particular, the relevant objects from the Amuco-Abelino site in Guerrero reveal dates as early as 1530 BCE. The city of Teopantecuanitlan in Guerrero is also relevant in this regard.

whats alluvial soil





Answer the question at the end by quoting:

Stan Kenton was born on December 15, 1911 in Wichita, Kansas; he also had two sisters (Beulah and Erma Mae) born three and eight years after him. His parents, Floyd and Stella Kenton, had moved the family back to Colorado, then, finally in 1924 to the Greater Los Angeles Area, settling in suburban Bell, California. Kenton attended Bell High School; his high school yearbook picture has the prophetic notation "Old Man Jazz". Kenton started learning piano as a teen from a local pianist and organist.
In April 1936 Gus Arnheim was reorganizing his band into the style of Benny Goodman's groups and Kenton was to take the piano chair. This is where Kenton would make his first recordings when Arnheim made 14 sides for the Brunswick label in summer of 1937. Once he departed from Gus Arnheim's group, Kenton went back to study with private teachers on both the piano and in composition. In 1938 Kenton would join Vido Musso in a short-lived band but a very educational experience for him.  From the core of this group come the line up of the first Stan Kenton groups of the 1940s. Kenton would also go on to working with the NBC House Band and in various Hollywood studios and clubs. Producer George Avakian took notice of Kenton during this time while he worked as the pianist and Assistant Musical Director at the Earl Carroll Theatre Restaurant in Hollywood. Kenton started to get the idea of running his own band from this experience; he created a rehearsal band of his own which eventually become his group in the 1940s.  In June 1941, Kenton formed his first orchestra. Kenton worked in the early days with his own groups as much more of an arranger than a featured pianist. Although there were no "name" musicians in his first band (with the possible exception of bassist Howard Rumsey and trumpeter Chico Alvarez), Kenton spent the summer of 1941 playing regularly before an audience at the Rendezvous Ballroom in Balboa Beach, CA. Influenced by Benny Carter and Jimmie Lunceford, the Stan Kenton Orchestra struggled for a time after its initial success. Its Decca recordings were not big sellers and a stint as Bob Hope's backup radio band during the 1943-44 season was an unhappy experience; Les Brown permanently took Kenton's place.  Kenton's first appearance in New York was in February 1942 at the Roseland Ballroom, with the marquee featuring an endorsement by Fred Astaire. By late 1943, with a contract with the newly formed Capitol Records, a popular record in "Eager Beaver", and growing recognition, the Stan Kenton Orchestra was gradually catching on; it developed into one of the best-known West Coast ensembles of the 1940s. Its soloists during the war years included Art Pepper, briefly Stan Getz, altoist Boots Mussulli, and singer Anita O'Day. By 1945, the band had evolved. The songwriter Joe Greene provided the lyrics for hit songs like "And Her Tears Flowed Like Wine" and "Don't Let the Sun Catch You Cryin'". Pete Rugolo became the chief arranger (extending Kenton's ideas), Bob Cooper and Vido Musso offered very different tenor styles, and June Christy was Kenton's new singer; her hits (including "Tampico" and Greene's "Across the Alley from the Alamo") made it possible for Kenton to finance his more ambitious projects.

Where did he study?
with private teachers