They are credited with developing medicine for the medieval world
Answer: The existence of life after death.
Explanation:
The Divine Comedy is the work of the Italian poet Dante Allegri. It is one of the most important parts of Italian literature. The section describes the three phases of life after death, namely heaven, purgatory, and hell. The author describes his own journey through the afterlife. The work represents one of the threats of the Renaissance.
Here are the consumerism cycle :
Earn money >> Buy stuff >> consume >> Want more >> Back to Earn money
on this Cycles, the manufacturers role is to provide a product that the market is lusting for, promoting Consumerism
<span>In writing his book, Livingstone’s primary aim was to direct public attention to central and southern Africa, which he presented optimistically as an “inviting field” for mission work and trade (Wisnicki 2009:257). It offered him the chance to advocate a combination of Christianity, commerce and civilisation and to encourage British intervention in the continent. Undoubtedly Livingstone’s attractive, almost “utopian” vision and his major literary success, contributed to his fame and his lasting reputation (Holmes 1993:351).</span>
I believe the answer is Barbed Wire.
Befor the inventions of barbed wire, the Cattles are let to roam freely across the plains and the owners are required to pay a lot of cowboys to supervise them so they didn't go missing. Witht he invention of barbed wire, they can keep the cattle in a secure place without supervision.