title: 1521 in science
text: # 1521 in science
  
  The year 1521 in science and technology included many events, some of which are listed here.
  
  ## Astronomy
  
  * January – Antonio Pigafetta, sailing with Magellan's expedition, observes Magellanic Clouds.
  
  ## Exploration
  
  * Francisco de Gordillo explores the Atlantic coast up to South Carolina.
  * March 6 – Ferdinand Magellan discovers Guam in the Mariana Islands.
  * March 16 – Magellan reaches the Philippines.
  * April 7 – Magellan arrives at Cebu Island.
  * November 8 – Magellan's expedition, now led by Juan Sebastián Elcano, arrives in the Maluku Islands.
  
  ## Medicine
  
  * Jacopo Berengario da Carpi publishes Commentaria cum amplissimus additionibus super anatomiam Mundini in Bologna, containing the first printed anatomical illustrations taken from nature and including observation of the vermiform appendix.
  
  ## Births
  
  * Valentin Mennher, German mathematician (d. c.1571).
  * approx. date – Richard Chancellor, English Arctic explorer (drowned 1556).
  
  ## Deaths
  
  * April 27 – Ferdinand Magellan, Portuguese explorer (born c.1480) (killed in the Philippines).
  * July 8 – Jorge Álvares, Portuguese explorer.
  * Francisco Serrão, Portuguese explorer.
  