Historical Context

• Pre-Industrial Age: Human mobility was primarily on foot or horseback. Communication was via handwritten letters, often taking weeks or even months to reach their destination.
• Industrial Revolution: Steam-powered engines led to the invention of trains and steamships, enabling faster transport across vast distances. Telegraph lines provided almost instantaneous communication over long distances.
• 20th Century: With the widespread availability of commercial aviation, international travel became hours instead of days. Telephones became household items, and the early internet began linking computers globally.