What is the difference between List() and List used in the code below?  They both appear to do the same thing?

Private Sub UserForm_Initialize()
Dim myArray As Variant
myArray = Split("A|B|C", "|")
ListBox1.List = myArray
'ListBox1.List() = myArray
End Sub

The List Property Help states that the row and column part (the parts that go inside the parens) "is required."  

     "row Required. An integer with a range from 0 to one less than the number of entries in the list.
     column Required. An integer with a range from 0 to one less than the number of columns."

From the example code above, those parts don't appear to be required.  What does "required" mean in this case?

The List property Help states:

"Use List to copy an entire two-dimensional array of values to a control. Use AddItem to load a one-dimensional array or to load an individual element."

In the example above List seems to work perfectly well for loading a one-dimensional array (provided I understand what that is).  Why would the Help file not propose using List for a one-dimensional array?

How should AddItem be used to load a one-dimensional array?

Private Sub UserForm_Initialize()
Dim i As Long
Dim myArray As Variant
myArray = Split("Professor Jones|Professor Miller|Professor Klumpp", "|")
ListBox1.AddItem myArray
End Sub

Causes a runtime error.

The following works, but seems a stupid way to do it since List appears to work perfectly well.

Private Sub UserForm_Initialize()
Dim i As Long
Dim myArray As Variant
myArray = Split("Professor Jones|Professor Miller|Professor Klumpp", "|")
'Build directly from an Array
For i = 0 To UBound(myArray)
 Me.ListBox1.AddItem myArray(i)
Next i
End Sub