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100 CE
200 CE
300 CE
400 CE
500 CE
600 CE
700 CE
800 CE
900 CE
1000 CE
1100 CE
1200 CE
1300 CE
1400 CE
1500 CE
100 CE - 170 CE: Ptolemy describes the principle of the astrolabe - sterographic projection.
1000 CE: Knoweldge of the astrolabe filters through Muslim Spain to the rest of Europe.
1391 CE: Geoffrey Chaucer wrties an explanation of how to use an astrolabe in his Tractatus de Conclusionibus Astrolabii.
1510 CE: Johannes Stoeffler explains the astrolabe in Elucidatio fabricae ususque astrolabii.