We already talked about the basic posting of lists in two lessons: How to Create Simple Bulleted Lists & How to Post Advanced Ordered Lists.
Let's talk now about more advanced use of lists in bbCode. You are not limited in posting plain lists, you can combine tags with different option to get some advanced lists with sub-lists under them.
As an example, we will create a list with main titles numbered using capital Roman digits, under them, lists with titles numbered using Arabic digits, and finally, a sub-sub-list that is alphabetic with lowercase letters.
Notice how the first & second lists we added, had their starting tag [list] inserted just after the continent name it should be under, and their end tag [/list] put just before the next continent.
For the list under Europe, and as it's the last one, the end tag was inserted before the end tag of the main list of continents.