Event Editor (event_editor.jar)
EventEditor is a plugin that provides a GUI to facilitate entering event database into the OSM through JOSM.
First download josm along with all its plugins.
svn checkout http://svn.openstreetmap.org/applications/editors/josm/ cd josm/core ant dist cd ../plugins git clone email@example.com:polous/osm-event-plugin.git event_editor cd event_editor ant dist
This will create an editor event_editor.jar in josm/dist folder.