The Oxford comma is 100 percent optional, although advocates say it’s necessary for removing ambiguity in sentences. The Oxford comma rule was created in 1905 by a printer named Horace Hart.

Use and between the last two items, instead of a comma. For example: Today I need to buy milk, bread, apples and potatoes. In longer sentences, you can use commas to separate out extra information ...

An error known as a comma splice (or comma fault) results when a comma is mistakenly placed between two independent clauses that are not joined by a coordinating ...

A Reddit user found what could be the best three sentence arguments in existence for the use of the Oxford comma: It's likely the book is dedicated to the author's parents, Ayn Rand, and also God ...

SEE ALSO: Donald Trump's inauguration poster has an embarrassing typo If you don't already know, the Oxford comma is the last one in a series, such as in the sentence: "I like to run, skip ...

When combining two complete sentences with a conjunction ("and," "but," "or," "for," or "yet"), precede the conjunction with a comma. Example: Still, the sun is slowly getting brighter and hotter, and ...