Zara, founded by Amancio Ortega and Rosalía Mera in 1975, is the flagship store of the Inditex Group and has become the world's largest fashion retailer known for its rapid production and innovation in the industry. The company faced controversies regarding toxic clothing production and offensive designs but has since committed to a toxic-free production process. Zara's success stems from its ability to swiftly adapt to fashion trends while maintaining low advertising costs, leveraging a unique supply chain that allows for quick response to consumer demand.