Final answer:
The March on Washington sent a powerful statement through the size of the crowd that attended.
Step-by-step explanation:
The aspect of the March on Washington that sent a powerful statement was the size of the crowd that attended. It was estimated that around 250,000 people gathered at the event, making it one of the largest political rallies in American history. The large crowd demonstrated the widespread support and unity behind the civil rights movement, and showcased the determination of the protesters to fight for equality and justice.
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