What Is a Semicolon?
Semicolons (;) are as basic as a period stacked on top of a comma. Does that mean you can use it like either one? Don’t get your hopes up. But don’t let this punctuation mark get you down, either. After all, that sly emoticon winky eye can’t be all bad. 😉
How to Use a Semicolon Correctly
The most common use of the semicolon is to join two independent clauses without using a conjunction like and.
Do you use a capital letter after a semicolon? The general answer is no. A semicolon should be followed by a capital letter only if the word is a proper noun or an acronym.
We can go to the museum to do some research; Mondays are pretty quiet there.
Remember, semicolons are not interchangeable with commas or periods. See More . . .
https://www.grammarly.com/blog/semicolon/