Why was less posibble for europeans to enslave large numbers of native americans than africans?

The Spanish Conquistadors killed 90% of the Native population once they landed on North America because of the diseases they Brint over such as yellow fever and typhus.

Assemblies do not have written codes of laws. laws are matters for magistrates and courts, not assemblies. codes of law are things such as civil law, criminal law, and constitutional law. what assemblies have are procedures regarding debating, voting and other business they might carry out.  also note that rome had three assemblies: the assembly of the soldiers, the assembly of the tribes, and the plebeian councils.