An unordered list starts with the <ul> tag, and each item in the list starts with the <li> tag.
The list items will be marked with bullets (small black circles) by default:

An ordered list starts with the <ol> tag, and each item in the list starts with the <li> tag
The list items will be marked with numbers by default:
HTML also supports description lists.
A description list is a list of terms, with a description of each term.
The <dl> tag defines the description list, the <dt> tag defines the term (name), and the <dd> tag describes each term: