Trade is the transfer of ownership of goods and services from one person or entity to another by getting something in exchange from the buyer. Trade is sometimes loosely called commerce or financial transaction or barter. A network that allows trade is called a market. The original form of trade was barter, the direct exchange of goods and services. Later one side of the barter were the metals, precious metals (poles, coins), bill, paper money. Modern traders instead generally negotiate through a medium of exchange, such as money. As a result, buying can be separated from selling, or earning. The invention of money (and later credit, paper money and non-physical money) greatly simplified and promoted trade. Trade between two traders is called bilateral trade, while trade between more than two traders is called multilateral trade.

Trade exists for man due to specialization and division of labor, most people concentrate on a small aspect of production, trading for other products. Trade exists between regions because different regions have a comparative advantage in the production of some tradable commodity, or because different regions' size allows for the benefits of mass production. As such, trade at market prices between locations benefits both locations.

Ernesto "Che" Guevara (Spanish pronunciation: [ˈtʃe ɣeˈβaɾa]; June 14, 1928 – October 9, 1967), commonly known as el Che or simply Che, was an Argentine Marxist revolutionary, physician, author, intellectual, guerrilla leader, diplomat, and military theorist. A major figure of the Cuban Revolution, his stylized visage has become a ubiquitous countercultural symbol of rebellion and global insignia within popular culture.

As a young medical student, Guevara traveled throughout Latin America and was radically transformed by the endemic poverty and alienation he witnessed. His experiences and observations during these trips led him to conclude that the region's ingrained economic inequalities were an intrinsic result of capitalism, monopolism, neocolonialism, and imperialism, with the only remedy being world revolution. This belief prompted his involvement in Guatemala's social reforms under President Jacobo Arbenz, whose eventual CIA-assisted overthrow solidified Guevara's political ideology. Later, while living in Mexico City, he met Raúl and Fidel Castro, joined their 26th of July Movement, and sailed to Cuba aboard the yacht, Granma, with the intention of overthrowing U.S.-backed Cuban dictator Fulgencio Batista. Guevara soon rose to prominence among the insurgents, was promoted to second-in-command, and played a pivotal role in the victorious two-year guerrilla campaign that deposed the Batista regime.

Herschel Junior Walker (born March 3, 1962) is a former American college and professional football player and a mixed martial artist. He played college football for the University of Georgia, was a three-time All-American, and won the 1982 Heisman Trophy. Walker began his professional football career with the New Jersey Generals of the United States Football League (USFL), before joining the Dallas Cowboys of the National Football League (NFL). In the NFL, he also played for the Minnesota Vikings, Philadelphia Eagles and New York Giants. He was inducted into the College Football Hall of Fame in 1999.

Walker was born in Wrightsville, Georgia to Willis and Christine Walker. He was raised as one of the 7 children in a blue collar family. Walker said that as a child he was overweight and had a speech impediment. Walker's mother taught him not to use these problems as excuses in life.

Walker played for the Johnson County High School Trojans in Wrightsville, Georgia from 1975–1979. In 1979, he rushed for 3,167 yards, helping the Trojans to their first state championship. He was awarded the first Dial Award for the national high school scholar-athlete of the year in 1979.