The virus is now manageable as a chronic health condition but this was not always the case. when and why did this change?

The early years of the aids crisis were different from todays reality. The virus is now manageable as a chronic health condition but this was not always the case. when and why did this change? HOw were the first people diagnosed treated ? what role did activist groups like ACT-UP play in development of new antiviral medications and in changing the publics perception of people with aids?