30% to 8% corresponds to several civilization-destroying events, below are only a few.

* central banking/MMT/Keynes

* universal sufferage & "democracy" as an ideal

* belief government can deliver world peace

* Darwin+Marx+universal-emancipation

But of course, the beast gained power long before the late 19th century. It was the schism of the church that marked the end of the rule of whites, and the emergence of the Jew as the new ruler. This has nothing to do with Christianity, but the lack thereof. The millennial rule of Satan is through his children, and his purpose is to destroy. Fortunately for us, we are in the end of this period where the unveiling is finally taking place.