EVENTS or ACTUAL OCCASIONS

Whitehead tried defining geometric objects with Events or Actual Occasions.
Russell did something similar with Events.
I think (perhaps) Russell thought there was a maximum size of an event.
Events were to be conceived as volumes of space time.
Points, for example, would be conceived as classes of events, converging
to a point.
But this seems to presuppose the idea of a point.
I suggest, as an idea for research, there be both minimum and maximum sizes
of events.
If to events overlapped, then the overlapping volume would also be an event.