Why did gabriel believe he and his followers could abolish slavery in virginia through an armed uprising?

Gabriel and his followers believed slavery could have been abolished because they heard about the effect of the french revolution in slaves, because the slaves represented almost 40% of the total population and because they had free movement to organize everything.

Explanation:

The belief of the abolishment of slavery in Virginia was based on three main factors, the first one was that they knew about the french revolution and the effects of it. The second was that the slave population represented almost 40% of the total population. The third fact was that there were no strict rules over the slave movement from the plantations to towns or the city. Thus, they believed the abolishment of slavery was possible.

during the ming dynasty

i would say it is the roman empire europe after the norman conquest.