Answer: The downward-sloping demand curves
The Silk Roads were made up of an indirect chain of separate transactions through which goods crossed the entire land area of Eurasia. Rarely did merchants themselves travel the length of these routes; in fact, few of them knew the complexity and breadth of the Silk Roads. Merchants primarily engaged in local instances of "relay trade" in which goods changed "hands many times before reaching their final destinations."[1] Because the Silk Roads crossed land it was much more expensive and dangerous to move goods. Consequently, trade focused on luxury items that would bring a nice profit making the greater risks worthwhile. Particularly important were luxury items with a high value to weight ratio.
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<span>Pope Julius II
This pope who reigned from November 1, 1503 to February 21, 1513. He founded the Swiss Guard to provide a constant corps of soldiers to protect the Pope. During his reign he's noted for many things, but primarily as a patron of the Arts. He laid the foundation stone of the new St. Peter's Basilica in 1506 and commissioned many works of art including the painting of the ceiling of the Sistine Chapel by Michelangelo.</span>
Jim Crow laws were laws at the state and local level in, primarily, the Southern United States, that enforced segregation of the races.
