What major characteristic of American companies in the 1920s was that they were wildly unregulated by the federal government, which was one of the things that led to the Great Crash of 1929.
The person who had a greater impact on industrial development in the U.S., was <u>Samuel Slater</u> <em>(Who was born in England in June 9, 1768 and died in April 21, 1835)</em>, because He was a pioneer in the American Industrial Development that took the British textile technology and the machinery designs and brought them to the United States, and with that industrial system and the machines, he created the first textile factories of North america, and began a business in that industry with his sons. <u>And thanks to that, it was generated an increase and an enhance in the U.S. industrial development, which caused that U.S became in one of the most industrialized nation.</u> So for that reason, <u>Samuel Slater was known as the "Father of the American Factory System".</u>
But by other side, although Eli Whitney contributed to the U.S. Industrial Revolution with the invention of the cotton gin, however, he wasn't founded the pillars of the Industrial Development of the U.S., as Samuel Slater did it.
So, according to the previous, <u>the right answer is Samuel Slater.</u>
The Louisiana Purchase of 1803 doubled the size of the United States, gave the country complete control of the port of New Orleans, and provided territory for westward expansion.