Was Chirp Spread Spectrum developed prior to LoRa itself out of interest? I had a little look at https://en.wikipedia.org/wiki/Chirp_spread_spectrum https://en.

Was Chirp Spread Spectrum developed prior to LoRa itself out of interest? I had a little look at https://en.wikipedia.org/wiki/Chirp_spread_spectrum https://en.wikipedia.org/wiki/Chirp_spread_spectrum but couldn't really tell. I was under the impression that other modulation schemes such as FSK etc. can also perform similarly to CSS in terms of data rate etc. and distance?