Cornelius Vanderbilt (215 billion dollars) He was an American business magnate and philanthropist who built his wealth in railroads and shipping. He died on January 4th, 1877 Henry Ford (188 billion dollars) He founded Ford Motors and brought automobiles to the masses. He also sponsored the development of the assembly line technique of mass production. Muammar Gaddafi (200 billion dollars) Gaddafi is said to have controlled a vast fortune of $200 billion, amassed during his 42-year rule over Libya. A highly controversial and divisive politician and ruler, Gaddafi was famously overthrown in 2011 during the Libyan civil war, when he was dragged into the streets and killed by revolutionaries. Mir Osman Ali Khan (230 billion dollars) You may never have heard of Mir Osman Ali Khan, but he was without a doubt one of the wealthiest people the world has ever known . As ruler of the Hyderabad State in India, he grew his riches to a total of $230 billion. He became Nizam of Hyderabad after his father died in 1911 and reigned for 37 years, overseeing the expansion of education, electricity, and railroads in the region. He died in 1967, survived by his reported 149 children. Mansa Musa (400 billion dollars) Far and away the richest man to ever walk the face of the Earth was Mansa Musa , or Musa I of Mali. As the reigning emperor of the Mali empire, Musa commanded a fortune worth a jaw-dropping $400 billion. That’s worth more than four times the current richest person in the world, to put things in perspective. Musa was born in 1280 and lived until 1337 as a devout Muslim, constructing numerous educational centers and mosques across Africa, one of which can be seen above, in Timbuktu. Being as that Musa’s reign was so long ago, there are still varying reports about his death and abdication of the throne to his son. However, no one has been able to come even close to the amount of wealth Musa presided over. John Rockefeller (340 billion dollars) John D. Rockefeller was an American business magnet, Industrialist and philanthropist, who provided with the major contribution in the oil industry. He was also the co-founder of Standard Oil Company due to which there was a drastic and revolutionary change in petroleum industry. During 40 years of his life time, Rockefeller had property of about $310 billion making him the richest during 18th century. Nikolai Alexandrovich Romanov (300 billilon dollars) Known as Tsar Nicholas II, Nikolai Alexandrovich Romanov amassed $300 billion worth of wealth during his tenure. Nicholas II is probably most famous for being the last emperor of Russia before the country fell during the Russian Revolution. Both he and his family were eventually executed in 1918. Andrew Carnegie (310 billion dollars) Andrew Carnegie, an incredibly wealthy and powerful industrialist, came to prominence during the mid-1800s by way of the steel industry. Having been born in Scotland, Carnegie came from a very poor family that entered the United States in the late 1840s. After successfully investing in a number of ventures, Carnegie founded the U.S. Steel Corp., which earned him most of his $310 billion fortune.