How long did Pytheas travel?

Nobody knows the exact answer, but most likely it took place in the 350s, 310s BC. or in other words about 40 years



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.