Historical Person

Ibn Sina

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📍 Iran

Ibn Sina

Also known as: Avicenna

Gender: Male

Related Events

Ibn Sina records a transit of Venus

📅 24 May 1032

A modern study identifies his description as the earliest surviving report of Venus passing across the Sun on 24 May 1032.

The observation challenges a rigid Ptolemaic cosmos

📅 24 May 1032

A Venus transit bears on whether the planet can pass between Earth and the Sun, an issue in medieval planetary ordering.

Ibn Sina combines astronomy, optics and instrument design

📅 24 May 1032

His writings discuss celestial visibility, angular measurement and methods for terrestrial longitude.

The event survives through Persian-Arabic scholarship

📅 24 May 1032

The record illustrates how medieval Islamic scientific texts preserve observations absent from standard European narratives.

Study reassesses Avicenna's astronomical legacy

📅 23 May 2025

The paper gathers evidence on his observations, instruments, longitude methods and criticism of predictive astrology.

Avicenna designs a high-precision angular instrument

📅 23 May 2025

The study argues that his device anticipated later techniques for reading subdivisions on a measurement scale.

Astronomy is separated from fortune-telling

📅 23 May 2025

Avicenna defended mathematical and observational study of the heavens while rejecting claims of certain prediction about human affairs.

Modern scholarship restores a neglected Persian contribution

📅 23 May 2025

The publication argues that standard accounts understate how his astronomical work influenced Islamic and Latin traditions.