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{{Short description|Indian mathematician (1944–2022)}} {{Use Indian English|date=July 2022}} ...

...[[history of Islam]], traditionally dated from the 8th century to the 13th century.<ref name=Saliba>{{cite book|last=Saliba |first=George |author-link=George ...phor of a [[Golden age (metaphor)|golden age]] began to be applied in 19th-century literature about [[Islamic history]], in the context of the western aesthet ...

...the human population will begin to decline in the second half of the 21st century.<ref>{{Cite news |last1=Cave |first1=Damien |last2=Bubola |first2=Emma |las ...s, broken down by continents, were published in the first half of the 19th century, at 600 million to 1&nbsp;billion in the early 1800s and 800&nbsp;million t ...

...nk it's not a battery. I think the people who argue it's a battery are not scientists, basically. I don't know anybody who thinks it's a real battery in the fiel ...or [[panemone windmill]] first appeared in [[Greater Iran]] during the 9th century.<ref>Glick, Thomas F., Steven Livesey, and Faith Wallis. Medieval science, ...

...school geometry: evolution of the two-column proof in the early twentieth century |url=https://link.springer.com/article/10.1023/A:1020264906740 |journal=Edu ...ism]].<ref>{{Cite book |last1=Serway |first1=Raymond A. |title=Physics for Scientists and Engineers |last2=Jewett |first2=John W. |publisher=[[Thomson Brooks/Col ...

...s Report, 25 February 1993</ref><ref name="RebeccaLeung"/> and a twentieth-century trend toward smaller families in developed countries continued.<ref>{{cite ...adults and children was much smaller than it is in the early twenty-first century. Between 1953 and 2006, adult gains on the vocabulary subtest of the [[Wech ...

...of the House of Representatives to honor the life and achievements of 19th Century Italian-American inventor Antonio Meucci, and his work in the invention of ...Amati/Amaticello.html|title=Violoncello by Andrea Amati, Cremona, Mid-16th Century|website=collections.nmmusd.org|access-date=2019-11-05}}</ref> ...

The '''history of radiation protection''' begins at the turn of the 19th and 20th centuries with the realization that [[ionizing radiation]] from natural and ...relessly, increasing awareness of the dangers of [[radiation]] in the 20th century led to the implementation of various preventive measures worldwide, resulti ...