Where did the landrace pigs come from?

Landrace pigs originated in various regions around the world, with notable breeds emerging from Denmark and the United States. These pigs were selectively bred for their adaptability, reproductive efficiency, and quality of meat. Their ability to thrive in diverse environments made them popular among farmers, leading to the establishment of distinct landrace varieties in different countries. Today, landrace pigs are recognized for their genetic diversity and contributions to modern pig breeding.