quality:correction
Proper and common nouns

A proper noun (sometimes called a proper name, though the two terms normally have different meanings) is a noun that represents a unique entity (India, Pegasus, Jupiter, Confucius, Pequod) – as distinguished from common nouns (or appellative nouns), which describe a class of entities (country, animal, planet, person, ship). In Modern English, most proper nouns – unlike most common nouns – are capitalized regardless of context (Albania, Newton, Pasteur, America), as are many of the forms that are derived from them (the common noun in "he's an Albanian "; the adjectival forms in "he's of Albanian heritage" and " Newtonian physics", but not in " pasteurized milk"; the second verb in "they sought to Americanize us").