How do we subscribe alert to osm history analyzer?

I want to add some health facilities to my whole country with involvement of humanitarians. I want to trace the changes in health sector before and after. Is there is any way out using tools like OSM History analyzer, OSMcha or any such?

Using Overpass and Overpass Turbo you can search for things using dates. Have a look at, and for a general introduction. There are also specific questions at You’ll probably then have lots more questions - come back here after you’ve had a look at those.