Historical Events, Birthdays and Deaths in 998

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What Happened This Year 998

All Events 1 Births 0 Deaths 2

People Who Died in 998

Abū al-Wafā' Būzjānī

Persian mathematician and astronomer

Died

July 15th, 998 1026 years ago — None years old

A Persian mathematician and astronomer contributed significantly to the fields of mathematics and astronomy during the medieval period. Developed advancements in trigonometry, particularly in terms of sine and tangent functions. Implemented the use of sexagesimal fractions, which improved accuracy in calculations. Created accurate astronomical tables and synthesized earlier scientific knowledge, particularly the works of Greek astronomers. His efforts in improving the accuracy of astronomical instruments facilitated advancements in celestial navigation.

Fujiwara no Sukemasa

Japanese noble and calligrapher

Died

August 19th, 998 1026 years ago — None years old

A noble and calligrapher active during the Heian period, significant contributions to the art of calligraphy marked the life of this individual. Held positions as a statesman and interacted closely with the imperial court, influencing cultural practices in Japan. Produced works that reflected the aesthetic values of the time, particularly in the techniques of writing and the presentation of texts. Engaged in various court functions and maintained a prominent status among the aristocracy until death in 998.