Businessweek Celebrates 85th Anniversary with 5 Covers

Bloomberg Businessweek is celebrating its 85th anniversary with five covers, each featuring a “disruptive idea.” The theme is carried on inside the issue, as Businessweek honors the 85 most disruptive ideas over the past 85 years. A few from the list:

• VCR
• Twitter
• Starbucks
• GPS
• Gay marriage
• Email

Businessweek’s editor, Josh Tyrangiel, explained the idea behind the ideas list:

This special issue chronicles the most disruptive ideas of the past 85 years, those entrepreneurial earthquakes whose tremors are still being felt.