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.
Prior to ERISA's enactment in 1974, the U.S. Department of Labor started regulating employee benefit plans when the Welfare and Pension Plans Disclosure Act (WPPDA) came about in 1959. The WPPDA required employers to make plan descriptions and annual financial reports available to the government and plan participants.