rich1.0A.A.Ron (npub1v4…e2y09)https://yabu.me/npub1v40sr983gxp3x685mgmjvgsxy3t77u7t78ndk9e56truqhsq989q3e2y09njumphttps://yabu.meImprovements in agriculture technology would have eventually ended slavery without killing 655,000 people.