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.
Material Requirements Planning, or MRP, was developed in the 1970s to help manufacturing companies better manage their procurement of material to support manufacturing operations. MRP systems translate the master production schedule into component- and raw material-level demand by splitting the top level assembly into the individual parts and quantities called for on the bill of materials, which reports to that assembly, and directs the purchasing group when to buy them based on the ...