Who discovered flatworms?

Flatworms were not discovered by a single individual; rather, they have been studied and classified by various scientists over time. The first descriptions of flatworms can be traced back to early naturalists in the 18th century, such as Carl Linnaeus, who contributed to their classification. Later, more detailed studies were conducted by researchers like Johannes Müller and Antonie van Leeuwenhoek, who advanced the understanding of these organisms.