Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 355
The first user who solved this task is Manguexa Wagle.
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First bicycle on U.S. stampIn 1902, the first U.S. stamp to show a bicycle in its design was issued. This blue 10-cent Special Delivery "Messenger on Bicycle" stamp showed in a small way how technology was coming in America's future, because it replaced earlier issues of a design showing a "running" messenger. When the special delivery service was initiated with its own 10-cent stamp the earliest known use of that stamp was on 6 Sep 1888 (which is used to date the stamp as in earlier times there was no formal day-of-issue.) A few varieties of the same running messenger were issued in the years prior to the 1902 Messenger on Bicycle stamp.« |