This unit explores the invention of the telegraph by Samuel Morse in 1837, which revolutionized long-distance communication and transformed the way information was shared and businesses operated. Üben mit sofortiger Rückmeldung, kostenlos und ohne Anmeldung.

Weitere Themen

• The Cotton Gin
• The Telephone
• The Steam Engine
• The Railroad
• The Automobile
• The Computer
• The Internet
• Artificial Intelligence