The seventh US president, Jackson was a child of the frontier and lost his entire family in the American Revolution. He was just 14 at the time and was already a member of the local militia. After emerging from the War of 1812 a hero for his defense of New Orleans, he rode a wave of popularity to the presidency in 1828. He was seen as a champion of the common man, but he relentlessly displaced many Native Americans. His wife died weeks before his inauguration. Why did he have to marry her twice? Discuss
Source: The Free Dictionary
An Afro-Brazilian dance form that incorporates self-defense maneuvers, capoeira originated among African slaves in 19th-century Brazil and is now a popular art form practiced worldwide. Capoeira is performed in a special roda, or circle, where practitioners take turns playing instruments, singing, and sparring. While capoeira focuses on skill rather than injuring opponents, the intensity of an individual game depends on the rhythm of the music. Why was capoeira outlawed in Brazil in 1890? 
By the end of the 18th century, the mechanization of fabric production in England had created a huge demand for US cotton, but cotton production was hampered by the large amount of manual labor required to remove the sticky seeds from the raw fiber. Whitney’s cotton gin solved this problem, performing the work mechanically and quickly. Cotton production in the US skyrocketed, as did the slave population—which quadrupled by 1850. Why was Whitney unable to profit from his invention? 
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Tragically orphaned at the age of 12, Strauss was apprenticed to a bookbinder but studied violin on the side. After completing his apprenticeship, he performed in string quartets around Vienna before deciding to start his own band and write his own music. He enjoyed much professional success, but his family life was tempestuous. He forbade his children to study music, but they did anyway, with Johann II eventually overshadowing him. In 1849, he died after contracting scarlet fever from whom? 
According to tradition, the vena amoris, or “vein of love,” runs directly from the heart to the fourth finger of the left hand. This belief has been cited in Western cultures as one reason why engagement and wedding rings are worn on that finger. The earliest known use of the phrase is found in A Treatise of Spousal or Matrimonial Contracts, published in 1686 by Henry Swinburne, who claims the concept derives from what ancient culture?