Anonymous, Byzantine sundial-cum-calendar

INTRODUCTION
- Man and the stars
SECTION I
- The dawn of astronomy: Mesopotamia, Egypt and the Biblical Cosmos
SECTION II
- The cosmos becomes a sphere
SECTION III
- The geometry of the cosmos
SECTION IV
- The skies of Islam
SECTION V
- Evangelisation of the cosmos
SECTION VI
- The Renaissance of Astronomy
SECTION VII
- Galileo: the cosmos through the telescope
SECTION VIII
- From Galileo to Newton

Astrolabe with monastic numbering system

Zoom

Anonymous
Byzantine sundial-cum-calendar, 5th-6th century
London, Science Museum, inv. 1983-1393

The most exceptional feature of this sundial-cum-calendar is its sheer antiquity. The four fragments are all that remain of a portable sundial combined with a calendar driven by gears.