who invented letters?
103956
God... He invented everything
592282
The way I read your question, you are asking why do people use the letter X to mean an unknown in math instead of some other letter of the alphabet.\n\nPeople did not always use the letter X.  The English mathematician Thomas Harriot (1560-1621) used the letter "a" as his unknown as did others at this time. The convention we use (letters near the end of the alphabet representing unknowns) was introduced by Descartes in 1637. Other conventions have fallen out of favour, such as that due to Viète who used vowels for unknowns and consonants for knowns.
425400
When people first started writing\n\nThe invention of the first writing systems is roughly contemporary with the beginning of the Bronze Age in the late Neolithic of the late 4th millennium BC. The first writing system is generally believed to have been the Sumerian script, which developed into cuneiform. Egyptian hieroglyphs, and the undeciphered Proto-Elamite script and Indus Valley script also date to this era, though a few scholars have questioned the Indus Valley script's status as a writing system.
1152035
Charles Babbage.\n\nRead the artical here:\n\nhttp://en.wikipedia.org/wiki/Charles_babbage
477506
Bernard Lassimone, a French mathematician, applied for the first patent (french patent #2444) on pencil sharpeners, in 1828. In 1847, Therry des Estwaux invented the manual pencil sharpener.
570503
Johannes Gensfleisch zur Laden zum Gutenberg (c. 1398 – c. February 3, 1468) was a German metal-worker and inventor who achieved fame for his contributions to the technology of printing during 1447, including a type metal alloy and oil-based inks, a mould for casting type accurately, and a new kind of printing press based on presses used in wine-making. The exact origin of Gutenberg’s first presses is apparently unknown, and several authors cite his earliest presses as adaptations of heavier binding presses which were already in use. Tradition credits him with inventing movable type in Europe — an improvement on the block printing already in use there. By combining these elements into a production system, he allowed for the rapid printing of written materials, and an information explosion in Renaissance Europe. Yet, it must be noted that an iron printing press was first invented by Korea's Goryeo dynasty in 1234, 216 years ahead of Gutenberg's feat in 1450.
1162298
Cat is invented by the one who invented us... So Now the big question is "Tricksy tricksy, if not completely stupid...? who invented us?"
914657
The come from Roman language which is the basis of most written language in the western world.  I would suggest reading the wikipedia article http://en.wikipedia.org/wiki/Capital_letters for a start to help you understand why it is done and then click on some of the links there for more information.\n\nGood Luck!!!
346896
Yep!\n\nThough I was in my early teens...I wrote him a letter too...\n\nfunny ha :)
1065062
An alphabet is a complete standardized set of letters — basic written symbols — each of which roughly represents a phoneme of a spoken language, either as it exists now or as it may have been in the past. There are other systems of writing such as logographies, in which each symbol represents a morpheme, or word, and syllabaries, in which each symbol represents a syllable.\n\nThe word "alphabet" itself is popularly believed to come from alpha and beta, the first two letters of the Greek alphabet, but some etymologists argue that instead the word derives from aleph and bet, the first two letters of the Phoenician alphabet. The true origin of the word is unclear. There are dozens of alphabets in use today. Most of them are 'linear', which means that they are made up of lines. Notable exceptions are Braille, manual alphabets, Morse code, and the cuneiform alphabet of the ancient city of Ugarit.
1031020
The correct answer is Nathaniel Hawthorne who wrote The Scarlet Letter, a story of a young girl accused of adultry and forced to wear a scarlet letter "A" so everyone would know her sin. I remember reading the book in high school as part of a required reading program. A long time ago.
161381
Chrono?\n\nGot any of the letters?
567559
I don't know, but I have a LOT of ancient, original love letters from WWI. I bought them at an auction.
548879
Norman Mailer\nhttp://en.wikipedia.org/wiki/Norman_Mailer
1013702
Christopher Latham Sholes and his colleagues, Carlos Glidden and Samuel Soulé, invented the first practical typewriting machine in 1866.\n\nThe type-bar system and the universal keyboard were the machine’s novelty, but the keys jammed easily. To solve the jamming problem, another business associate, James Densmore, suggested splitting up keys for letters commonly used together to slow down typing. This became today’s standard "QWERTY" keyboard.
801915
Take a look at this link.  It shows you how the alphabets developed.  Fascinating! http://www.wam.umd.edu/~rfradkin/alphapage.html
685524
who invented computer