the 4th

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi. Why do we use “the” here?: October the 4th

2

The full form would be :
the fourth day of October.
We’re using the article with that specific day.

3

What about this one? “October 4” Is it coorect? Are they used in the same situation?

4

Although it is written in that abbreviated form (and I notice some people have actually started saying it as it is written in the abbreviated form) in standard terms, these written forms:
October 4
October 4th
would still be spoken:
October the fourth.