History
Projection clocks were patented at least twice: once in 1909, and another time in 1940. Both patents have expired by now.
Early projection clocks were universally analog but with the widespread adoption of digital clocks, digital projection clocks became the standard.
Read more about this topic: Projection Clock
Famous quotes containing the word history:
“There is a history in all men’s lives,
Figuring the natures of the times deceased,
The which observed, a man may prophesy,
With a near aim, of the main chance of things
As yet not come to life.”
—William Shakespeare (1564–1616)
“Well, for us, in history where goodness is a rare pearl, he who was good almost takes precedence over he who was great.”
—Victor Hugo (1802–1885)
“Every library should try to be complete on something, if it were only the history of pinheads.”
—Oliver Wendell Holmes, Sr. (1809–1894)