Full Idea
Lombard holds that an event is a change in or to an object.
Gist of Idea
An event is a change in or to an object
Source
report of Lawrence B. Lombard (Events [1986]) by Stephen Mumford - Laws in Nature 2.1
Book Reference
Mumford,Stephen: 'Laws in Nature' [Routledge 2006], p.21
A Reaction
This strikes me as more plausible than Davidson's view that events are primitive, or Kim's that they are exemplifications of properties. Events then exist just insofar as we wish to (or are able to) discriminate them.