Answer:
The Tulsa massacre was not an isolated event, as it was just one of many events that promoted racial massacre through racist motives.
Step-by-step explanation:
An isolated event, is an event that happened remotely, a single time and that did not trigger other situations. We cannot consider the Tulsa Massacre an isolated event, because it was not the only racist movement that took place in the southern United States, promoting the mass slaughter of many African-Americans. On the contrary, the Tulsa massacre was just one of many racist events promoted by the southern population.