
June 20 in business history: Morse's patent, Ford signs with the UAW, the Deutsche Mark, and Jaws
On June 20, 1840, Samuel Morse received US Patent No. 1,647A for the electromagnetic telegraph — a system whose relay circuit became the global standard but whose creator was largely bypassed in the commercial rollout. On June 20, 1941, Ford Motor Company — the most violently anti-union automaker in history — signed a contract with the UAW that outbid both GM and Chrysler, converting forced capitulation into competitive advantage. On June 20, 1948, Ludwig Erhard abolished Nazi-era price controls in West Germany without authorization — choosing Sunday so occupation authorities couldn't stop him — triggering the Wirtschaftswunder that grew industrial output 53% in six months. And on June 20, 1975, Jaws opened on 464 screens with $700,000 in national TV advertising, breaking three industry rules simultaneously and creating the summer blockbuster model that still governs Hollywood.

1840 — Morse's patent: the repeater circuit that ate the world

1941 — Ford and the UAW: forced capitulation as competitive advantage

1948 — The Deutsche Mark: the Sunday decree that rewired an economy

1975 — Jaws: how three broken rules built Hollywood's summer

참고 출처
- 1Google Patents: US1647A
- 2Wikipedia: Samuel Morse
- 3Wikipedia: Electrical telegraph
- 4Wikipedia: Associated Press
- 5Wikipedia: Western Union
- 6Justia: O'Reilly v. Morse, 56 U.S. 62 (1853)
- 7HISTORY.com: Ford signs first contract with autoworkers' union
- 8Wikipedia: Battle of the Overpass
- 9Encyclopedia.com: Ford-UAW Contract
- 10Encyclopedia.com: General Motors-United Auto Workers Landmark Contracts
- 11Wikipedia: United Auto Workers
- 12Wikipedia: Deutsche Mark
- 13Wikipedia: Currency Reform of 1948
- 14Econlib: German Economic Miracle by David R. Henderson
- 15Wikipedia: Wirtschaftswunder
- 16Wikipedia: Berlin Blockade
- 17Deutsche Bundesbank: The economic and currency reform of 1948
- 18HISTORY.com: "Jaws" released in theaters
- 19The Hollywood Reporter: How "Massive" Promotion Built a Summer Blockbuster
- 20Wikipedia: Jaws (film)
- 21HISTORY.com: How 'Jaws' Invented the Summer Blockbuster
- 22Cinephilia & Beyond: Jaws at 50
- 23PBS Frontline: The Monster That Ate Hollywood
- 24Bold Entrance: Jaws: The Monster Movie That Invented The Summer Blockbuster
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