Lyndon B. Johnson took office after Kennedy was assassinated.
They denied him his freedom because while he lived in a free state he was still considered property, and it also declared the Missouri Compromise unconstitutional because of the difference between slave and free states
As the legions blazed a trail through Europe, the Romans built new highways to link captured cities with Rome and establish them as colonies. These routes ensured that the Roman military could out-pace and out-maneuver its enemies, but they also aided in the everyday maintenance of the Empire.