I would go with 'Major sandstorms destroyed the crops' because the Indus Valley civilization most likely declined by something affecting the food.
Since working conditions were terrible, workers felt like they needed a voice so people could listen and improve these conditions. The women were excluded from the unions that were made so they formed their own. They wanted better wages and benefits.
Conceived as "Three Days of Peace and Music," Woodstock was a product of a partnership between John Roberts, Joel Rosenman, Artie Kornfield and Michael Lang. Their idea was to make enough money from the event to build a recording studio near the arty New York town of Woodstock
