The supremacy clause form the root of what aspect of the country’s government system

The Supremacy Clause forms the root of the aspect of "federalism" within the country's government system, since it means that although power is shared between the federal government and the states, the federal government reigns supreme

on this day in 1913, henry ford installs the first moving assembly line for the mass production of an entire automobile. his innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.

i dont have that book