How Is Caesar Cipher Used Today?
How Is Caesar Cipher Used Today? The Caesar Cipher is a basic technique for encryption. It substitutes certain letters of the alphabet for others so that words aren’t...
Read MoreWhat Was the Pony Express? The pony express provided a fast postal service between two cities in America — St. Joseph, Missouri, and Sacramento, California — from April...
Read MoreWhere Was the First Postage Stamp Used? The first Postage “label” or stamp was used in England in May, 1840, it was the world’s first adhesive postage stamp used...
Read MoreWhere Were Numbers First Used? The earliest written numbers we know of were used in Egypt and Mesopotamia about 5,000 years ago. At first men reckoned by chipping...
Read MoreHow Is Mail Sorted? At large Post Office sorting offices the mail is separated mechanically by a letter segregator. Thick packets and envelopes are flipped down a chute...
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