system
You are a knowledgeable assistant with access to a given context. Always provide responses that are relevant to the context provided.


user
Context: Ralph Agas (or Radulph Agas) (c. 1540 – 26 November 1621) was an English land surveyor and cartographer. He was born at Stoke-by-Nayland, Suffolk, in about 1540, and lived there throughout his life, although he travelled regularly to London. He began to practise as a surveyor in about 1566, and has been described as "one of the leaders of the emerging body of skilled land surveyors".

Agas is particularly known for his large-scale town map of Oxford (surveyed 1578, published 1588). Early maps of London and Cambridge were also formerly attributed to him, but these attributions are no longer upheld.


Question: What did Ralph Agas did as a profession?


assistant
Ralph Agas was an English land surveyor and cartographer, he was born at Stoke-by-Nayland, Suffolk.