Between 1838 and 1840, the American Anti-Slavery Society split in three, in part over the issue of women's leadership, specifically Abby Kelley's appointment to the business committee. Radical abolitionists and women's rights supporters, known as Garrisonian abolitionists, remained in the American Anti-Slavery Society.
In 1964, research by Grey Walter and colleagues began the modern era of ERP component discoveries when they reported the first cognitive ERP component, called the contingent negative variation (CNV). Sutton, Braren, and Zubin (1965) made another advancement with the discovery of the P3 component.
The Communist Party of the Philippines (CPP) was founded in 1968, and its armed wing, the New Peopleâs Army (NPA), was founded in the following year. Because the party and its armed wing are so closely intertwined, they are often referred to together as the CPP-NPA.