200 years? my nigga most speciation takes thousands of years at least. it's pretty much impossible to 'observe' macroevolution directly, but that doesnt mean u can't piece together information to show it did happen
evolution is a continuum, u can't pinpoint the exact point where one species becomes another because it's a very gradual change over thousands of years...but u do know that this one species used to be another at some point. it's like when u look at a color continuum. u cant tell the exact point where this gradient stops being red and becomes blue...but u can obviously tell that it was red at first, then became blue