I am looking for something like this Plunk
It has a start & end date, both of which can be slid to select a range of dates, start & end.
MUST be gratis for commercial use.
Must be AngularJs v1.x, not Angular (v2 or greater). In extremis, I might be able to live - I have a strong preference for a a slider, not a calendar with plain old JS and callback when the range changes.
As simple as possible, preferably no decencies, certainly as few dependencies as possible.
Visual granularity of either one month or one year (I am not yet sure which I want, but not days)
I have a strong preference for a a slider, not a calendar (because of the granularity - I don't want to see individual days), x
by default, start X years ago, rather than me having to adjust in code - although that is not a show stopper.
something slick & professional looking