Which list of places require semicolons instead of commas

1. London, England; Paris, France; Rome, Italy; Barcelona, Spain

2. Monday; Tuesday; Wednesday; Thursday

3. John, the CEO; Sarah, the manager; David, the accountant; Lisa, the marketing coordinator

4. January 1st; April 15th; July 4th; December 25th

There are a few scenarios where you would use semicolons instead of commas to separate items in a list. Here are three examples:

1. When the items in the list contain commas themselves:
- Example: My favorite cities include New York, New York; London, England; and Tokyo, Japan.

2. When the items in the list are longer and more complex:
- Example: The event will be held in San Francisco, California; Austin, Texas; and Vancouver, British Columbia.

3. When the items in the list need to be emphasized or separated more clearly:
- Example: We need to bring food for the picnic: sandwiches, chips, and drinks; games, like frisbee and volleyball; and blankets for seating.