The foundation of Aldi traces back to 1913 when Anna Albrecht opened a tiny corner bakery and grocery shop in Schonnebeck, a working-class mining suburb of Essen, Germany. After World War II, her sons Karl and Theo Albrecht took over the family shop in 1946. Confronted with severe postwar food shortages and extreme economic hardship among their working-class customers, the Albrecht brothers made a radical operational decision: instead of offering credit, delivery, and a wide array of slow-moving items like traditional grocers, they sold non-perishable staples at rock-bottom prices with a strict cash-and-carry policy. They pioneered the business rule of keeping profit margins at a slim 3% and immediately lowering retail prices whenever wholesale costs fell. By 1955, the brothers operated over 100 stores throughout the Ruhr valley. In 1961, the brothers divided the growing empire along the Ruhr River into ALDI Süd (led by Karl) and ALDI Nord (led by Theo) following a friendly disagreement over whether to sell cigarettes. In 1962, they officially adopted the name ALDI—an abbreviation of 'Albrecht Diskont'. In 1976, Aldi Süd established its American beachhead in Iowa, quietly refining its hyper-efficient limited-assortment formula before launching a nationwide expansion that redefined American grocery shopping. In the decades following its initial founding, Aldi navigated rapid industry evolutions, transitioning from early legacy operating paradigms to modern integrated operations. This sustained focus allowed the company to survive cyclical macroeconomic contractions, outpace regional incumbents, and establish deep institutional trust with demanding stakeholders. Through disciplined capital allocation, continuous internal innovation, and targeted strategic initiatives, Aldi built an enduring competitive moat anchored by proprietary technology, deep domain expertise, and sticky relationships that resist structural disruption.