Final answer:
The Internet was created by the U.S. Department of Defense through the development of ARPANET during the Cold War.
Step-by-step explanation:
The Internet was created by the U.S. Department of Defense. During the Cold War, the U.S. Department of Defense developed the Advanced Research Projects Agency Network (ARPANET), which laid the foundation for the internet we know today. Researchers involved in creating ARPANET developed many of the technologies that are still used in the internet.