Category
page 115th century in science
Spörer Minimum
Hypothesized period of low solar activity from 1460 to 1550
architonnerre
thumb|right|250px|Leonardo da Vinci's pen and ink drawing of the Architonnerre/Architronito
Treviso Arithmetic
anonymous textbook published in Italy in 1478
May 1453 lunar eclipse
Eclipse seen during the Fall of Constantinople
University of Aberdeen School of Medicine
medical school in Aberdeen City, Scotland, UK
1490 Ch'ing-yang event
presumed meteor shower