Question: The North American fur trade was the industry and activities related to the acquisition, trade, exchange, and sale of animal furs in North America. Aboriginal peoples in Canada and Native Americans in the United States of different regions traded among themselves in the Pre-Columbian Era, but Europeans participated in the trade beginning from the time of their arrival in the New World and extended its reach to Europe. The French started trading in the 16th century, the English established trading posts on Hudson Bay in present-day Canada in the 17th century, and the Dutch had trade by the same time in New Netherland. The 19th-century North American fur trade, when the industry was at its peak of economic importance, involved the development of elaborate trade networks.

Deerskin trade was at its most profitable in the mid-18th century. The Creeks rose up as the largest deerskin supplier, and the increase in supply only intensified European demand for deerskins. Native Americans continued to negotiate the most lucrative trade deals by forcing England, France, and Spain to compete for their supply of deerskins. In the 1750s and 1760s, the Seven Years' War disrupted France's ability to provide manufactures goods to its allies, the Choctaws and Chickasaw. The French and Indian War further disrupted trade, as the British blockaded French goods. The Cherokees allied themselves with France, who were driven out from the southeast in accordance with the Treaty of Paris in 1763. The British were now the dominant trading power in the southeast. While both the Cherokee and the Creek were the main trading partners of the British, their relationships with the British were different. The Creeks adapted to the new economic trade system, and managed to hold onto their old social structures. Originally Cherokee land was divided into five districts; however, the number soon grew to thirteen districts with 200 hunters assigned per district due to deerskin demand. Charleston and Savannah were the main trading ports for the export of deerskins. Deerskins became the most popular export, and monetarily supported the colonies with the revenue produced by taxes on deerskins. Charleston's trade was regulated by the Indian Trade Commission, composed of traders who monopolized the market and profited off the sale of deerskins. From the beginning of the 18th century to mid-century, the deerskin exports of Charleston more than doubled in exports. Charleston received tobacco and sugar from the West Indies and rum from the North in exchange for deerskins. In return for deerskins, Great Britain sent woolens, guns, ammunition, iron tools, clothing, and other manufactured goods that were traded to the Native Americans.

Using a quote from the above article, answer the following question: Were there any wars or conflicts that disrupted the fur trade during this period?
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Answer: Seven Years' War

Question: John William Heisman (October 23, 1869 - October 3, 1936) was a player and coach of American football, baseball, and basketball, as well as a sportswriter and actor. He served as the head football coach at Oberlin College, Buchtel College (now known as the University of Akron), Auburn University, Clemson University, Georgia Tech, the University of Pennsylvania, Washington & Jefferson College, and Rice University, compiling a career college football record of 186-70-18. In 1917, Heisman's Georgia Tech Golden Tornado were recognized as the national champion. Heisman was also the head basketball coach at Georgia Tech, tallying a mark of 9-14, and the head baseball coach at Buchtel, Clemson, and Georgia Tech, amassing a career college baseball record of 199-108-7.

Heisman first coached at Oberlin College. In 1892, The Oberlin Review wrote: "Mr. Heisman has entirely remade our football. He has taught us scientific football." He used the double pass, from tackle to halfback, and moved his quarterback to the safety position on defense. Influenced by Yale and Pudge Heffelfinger, Heisman implemented the now illegal "flying wedge" formation. It involved seven players arranged as a "V" to protect the ball carrier. Heisman was also likely influenced by Heffelfinger to pull guards on end runs. On his 1892 team, Heisman's trainer was Clarence Hemingway, the father of author Ernest Hemingway and one of his linemen was the first Hawaiian to play college football, the future politician John Henry Wise. The team beat Ohio State twice, and considered itself undefeated at the end of the season. However, the outcome of its game against Michigan is still in dispute. Michigan declared it had won the game, 26-24, but Oberlin said it won 24-22. The referee, an Oberlin supporter, had ruled that time had expired. The umpire, a Michigan supporter, ruled otherwise. Michigan then ran for a touchdown with no Oberlin players on the field. The Michigan Daily and Detroit Tribune reported that Michigan had won the game, while The Oberlin News and The Oberlin Review reported that Oberlin had won. In 1893, Heisman became the football and baseball coach at Buchtel College. A disappointing baseball season was made up for by a 5-2 football season. It was then customary for the center to begin a play by rolling or kicking the ball backwards, but this proved difficult for Buchtel's unusually tall quarterback Harry Clark. Under Heisman, the center began tossing the ball to Clark, a practice that eventually evolved into the snap. Buchtel won a single game against Ohio State at the Ohio State Fair before Heisman returned to Oberlin in 1894, posting a 4-3-1 record, including losses to Michigan and undefeated Penn State. The Penn State game ended with a fair catch and free kick, which resulted in a field goal for Penn State. Referees were confused whether teams could kick a field goal or had to punt on a free kick, and the game ended 6-4 in favor of Oberlin, but Walter Camp over-ruled the game officials, allowing Penn State its extra free kick and the victory 9-6.

Using a quote from the above article, answer the following question: Why did he call it scientific?
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Answer:
He used the double pass, from tackle to halfback, and moved his quarterback to the safety position on defense.