Modern humans emerged about 100 000BC and modern medicine developed psychotropic medications for schizophrenia after 1950. So for 98 050 years, schizophrenic people coped without medication.
I hate to be a downer but for most of history there was no cure for many diseases that are treatable today besides schizophrenia. But hey, I’m on your side about drugs and schizophrenia.
But you didn’t pick up my poor arithmetic. …that should be 101 950 years…haha.