By Cheryl M. Hamilton Proper Nouns Proper nouns name a particular person, place, or thing. Capitalize the first word and each important word of a proper noun. Walt Disney created Mickey Mouse. Proper nouns are: Walt Disney Mickey Mouse COMMON NOUNS Common nouns do not name a particular person, place, or thing. They are not capitalized. dog family teacher Capitalization Rules Capitalize the first word and all important words in a title. Have you read The Adventures of George Hamilton? Capitalization Rules Capitalize the days of the week and months of the year. Monday Saturday July December Capitalization Rules Capitalize the first letter of an abbreviated proper noun. 1. Abbreviations often occur in addresses, titles in names, and names of days and months. 2. An initial is a type of abbreviation. 3. Most abbreviations end with a period. Ms. S. M. Shandorf 119 Pennsylvania Ave. Everson, PA 15483 Received Fri. Sept. 16 Enjoy the movie! http://player.discoveryeducation.com/index.cfm?g uidAssetId=3108b432-762d-4ab5-ac4b1e5264dcb868&blnFromSearch=1&productcode=HU B