The letter I is capitalized in a sentence when it is used as a word to refer to the person writing. Proper (personal) names of people, places, and things are capitalized in English grammar. The word "I" is a personal pronoun; its function is to take the place of the name of the person doing the writing. Thus, the capitalization.
I have replaced the original answer, mostly by simply correcting the grammar and spelling and rephrasing it a bit. So I have changed the content, but not the meaning of the original answer.
If anyone out there can tell me why the word "I" is capitalized for the reason stated, but the word "you" is not, I will have found the answer to the question I orignally sought :-)
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My suggestion (jparrot99):
Go to:
http://www.etymonline.com/index.php?search=I&searchmode=none
There it says simply "to mark it as a distinct word and avoid misreading in handwritten manuscripts. "
Because you are talking about yourself e.g I like motorcross
All proper nouns should be capitalized but all words are capitalized at the beginning of the sentence.
Typically, all words will be capitalized except for articles (a, an, the) and short prepositions (of, on, etc.)
no they are slang words. typically slang words souldn't be capitalized
Nabisco should be capitalized but crackers shouldn't be.
Some words need to be capitalized; others do not. For every word to be capitalized in a dictionary would be confusing because one would not know which words they would need to capitalize in everyday usage.
All proper nouns should be capitalized but all words are capitalized at the beginning of the sentence.
No it shouldn't be capitalized.
Typically, all words will be capitalized except for articles (a, an, the) and short prepositions (of, on, etc.)
no they are slang words. typically slang words souldn't be capitalized
A proper noun has its first letter capitalized.
the words that are capitalized when used
"Who" and "was" are not capitalized unless they are the first words of a sentence.
All words apart from articles, conjunctions and prepositions should be capitalized.
In a title, only the first word, the last word, and all major words are typically capitalized. Minor words like "and," "or," and "but" are not usually capitalized unless they are the first or last word of the title.
Nabisco should be capitalized but crackers shouldn't be.
Some words need to be capitalized; others do not. For every word to be capitalized in a dictionary would be confusing because one would not know which words they would need to capitalize in everyday usage.
No, the words "turtle doves" are not typically capitalized unless they begin a sentence or are part of a title.