Ask HN: Chronology API?

Looking for an app/application/API that builds chronology. There are many "timeline" apps that are graphical-centric (i.e. making nice looking timelines). Also there are "project management" apps which present similar concepts constrained within the view of completing a project.

But I am looking for a lower level data-centric API or app. It should provide a way to log chronological events with a time, location, and attendees (and other dependencies). From there a logic of chronological flow can be established from one event to another. Any recommendations?