
June 21 in business history: Woolworth's first store, Manchester Baby, Penn Central, and SpaceShipOne
On June 21, 1879, Frank Woolworth opened his first successful five-cent store in Lancaster, Pennsylvania — a $300 borrowed inventory that became the world's largest retail chain before dying from the same competitive logic it created. On June 21, 1948, the Manchester Baby ran the world's first electronically stored program, a 52-minute computation that seeded the first commercial computer within 32 months. On June 21, 1970, Penn Central filed the largest US corporate bankruptcy of its era, collapsing 2.5 years after a decade-long merger from culture clash, accounting concealment, and immovable labor contracts. And on June 21, 2004, test pilot Mike Melvill crossed the Kármán line in SpaceShipOne — $25 million of private capital doing what NASA's $1.7 billion program could not.

1879 — Woolworth's five-cent store: the retail model that ate Main Street

1948 — Manchester Baby: the 52-minute program that changed everything

1970 — Penn Central: how the largest US bankruptcy of its time happened in 2.5 years

2004 — SpaceShipOne: $25 million, 52 minutes, and the commercial space age

参考ソース
- 1Woolworths Museum: A store is born — June 21, 1879
- 2Woolworths Museum: Frank Woolworth biography
- 3Library of Congress: Woolworth's Five and Dime
- 4Wikipedia: F. W. Woolworth Company
- 5Los Angeles Times: Woolworth 400-Store Chain to Close; 9,200 to Lose Jobs
- 6University of Manchester: How a 70-year-old 'Baby' changed the face of modern computing
- 7Wikipedia: Manchester Baby
- 8Computer History Museum: The Stored Program
- 9ComputingHistory.org.uk: The Manchester Baby — World's First Stored-Program Computer
- 10IEEE/ETHW: Manchester University "Baby" Computer and its Derivatives, 1948–1951
- 11Wikipedia: Ferranti Mark 1
- 12Science and Industry Museum blog: 75th anniversary of the Ferranti Mark 1
- 13Goldman Sachs: Penn Central Bankruptcy Sends Shock Waves Through Commercial Paper Market
- 14Wikipedia: Penn Central Transportation Company
- 15Railfan & Railroad Magazine: Penn Central: Fifty Years Later
- 16ProPublica: Bailout Aftermaths
- 17Wikipedia: SpaceShipOne flight 15P
- 18collectSPACE: Mike Melvill obituary
- 19Wikipedia: SpaceShipOne
- 20MiGFlug: SpaceShipOne — The Day a Private Team Beat NASA to Space for 1.5% of the Cost
- 21Smithsonian Air and Space Quarterly: A Triumphant Test Vehicle
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