Anonymous ID: d9666a March 12, 2018, 5:45 p.m. No.644959   🗄️.is 🔗kun

>>644832

If they knew this about the Ashkenazi in the 1800s what do they know today?!

https:// en.m.wikipedia.org/wiki/Tay–Sachs_disease

Why and how was this studied?

Bloodlines.