Not far from the mouth of the Rio Tejo into the Atlantic Ocean stands the Monument to the Discoverers (Padrão dos Descobrimentos) in the Belem district. Completed in 1960, it is dedicated to those personalities who played a decisive role in the age of the Portuguese discoveries. Henry the Navigator stands at the top of the monument. Although he did not undertake any voyages of discovery himself, he initiated and promoted them. With him, Portugal's rise to a maritime power began in the first half of the 15th century.