<P> As the use of typewriters grew in the late 19th century, the phrase began appearing in typing lesson books as a practice sentence . Early examples include How to Become Expert in Typewriting: A Complete Instructor Designed Especially for the Remington Typewriter (1890), and Typewriting Instructor and Stenographer's Hand - book (1892). By the turn of the 20th century, the phrase had become widely known . In the January 10, 1903, issue of Pitman's Phonetic Journal, it is referred to as "the well known memorized typing line embracing all the letters of the alphabet". Robert Baden - Powell's book Scouting for Boys (1908) uses the phrase as a practice sentence for signaling . </P> <P> The first message sent on the Moscow--Washington hotline on August 30, 1963 was the test phrase "THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG'S BACK 1234567890". Later, during testing, the Russian translators sent a message asking their American counterparts "What does it mean when your people say' The quick brown fox jumped over the lazy dog?"' </P> <P> During the 20th century, technicians tested typewriters and teleprinters by typing the sentence . </P> <P> In the age of computers, this pangram is commonly used to display font samples and for testing computer keyboards . In cryptography, it is commonly used as a test vector for hash and encryption algorithms to verify their implementation, as well as to ensure alphabetic character set compatibility . Microsoft Word has a command to auto - type the sentence, in versions up to Word 2003, using the command = rand (), and in Microsoft Office Word 2007 and later using the command = rand. old (). </P>

The quick brown fox jumps over lazy dog