Nuclear fear led to a new market for fallout shelters. Home economics classes taught girls how to stock such a shelter with food and supplies in the event of a nuclear attack. The government created official films on shelters, praising their value and advising homeowners on how to use them.
Johann Gutenberg’s invention of the printing press around 1448 had a significant impact on the spread of ideas in Europe and beyond. Printing technology traveled quickly across Europe and, at a time of great religious change, played a key role in the success of the Protestant Reformation. Reformation leader Martin Luther could only preach to a small number of people, but the printed word could spread his message to thousands more
The printing press drastically cut the cost of producing books and other printed materials. Prior to Gutenberg’s invention, the only way of making multiple copies of a book was to copy the text by hand, an laborious and intensely time-consuming occupation usually performed by monks. The materials involved were also costly: Monks wrote on treated skins, known as vellum, and a single copy of the Bible could require 300 sheepskins or 170 calfskins. Printing onto paper made copying cheaper and faster.
My source:
http://classroom.synonym.com/impact-did-invention-printing-press-spread-religion-6617.html
He wasn’t sure he had the legal authority to make the deal because the constitution didn’t confer about authority for acquiring territory.