Is there a javascript library that allows for drawing histograms/graphs over timelines, allow zooming, as well as selecting regions.
Something similar to Google's Financial Data Graphs (allows for scrolling, zooming in, as well as selecting ranges) Google Financial Data
Thanks.
Looks like you might want to also look at Square's Crossfilter which is built with D3.js and amazing framework
Don't you want to use an annotated timeline, like:
http://code.google.com/apis/visualization/documentation/gallery/annotatedtimeline.html
http://code.google.com/p/flot/ i think its the best.