10,000 BC, AGRICULTURAL REVOLUTION
PHOTO: JEFF CAYLOR ➝ WWW.FLICKR.COM/PHOTOS/JEFFCAYLOR
1815-1914, INDUSTRIAL REVOLUTION ➝ ORCHESTRAL MANOEUVRES IN DESIGN / PAUL ATKINSON
COTTONPOLIS, ENGRAVING BY EDWARD GOODALL (1795-1870)
1980, SERVICE REVOLUTION
PHOTO: ANGELA ANDERSON-COBB ➝ WWW.FLICKR.COM/PHOTOS/ANGELARIEL65
1990, DIGITAL REVOLUTION ➝ SHAREABLE / NEAL GORENFLO
PHOTO: HUGO VAN MEIJEREN