Opposition Movements and Groups 1789-2020: Introducing the OMG Dataset
We introduce the Opposition Movements and Groups (OMG) dataset, which includes rich information on 1,456 mass mobilization movements (and 1,805 movement-phases) across the world between 1789 and 2020. The stated goals, duration, size, tactics, ideology, and social and organizational composition of these movements have influenced political and social life worldwide.