Smithsonian Magazine

The Decimal Point Is 150 Years Older Than Previously Thought, Medieval Manuscript Reveals

Math historian Glen Van Brummelen came across decimal points in Giovanni Bianchini's manuscript, Tabulae primi mobilis B. Van Brummelen / Historia Mathematica, 2024 For years, historians thought ...
Newsweek

History of Math Shaken Up As Fundamental Point 150 Years Older Than Thought

The origins of the decimal point, something millions of people use daily, may be much older than we first thought. It was initially considered to have originated in 1593, having been used by German ...
Las Vegas Sun

Dewey Decimal System still most common, but some libraries using updated classification

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. Dewey ...
Scientific American

The Decimal Point Is 150 Years Older than Historians Thought

The decimal point was invented around 150 years earlier than previously thought, according to an analysis of astronomical tables compiled by the Italian merchant and mathematician Giovanni Bianchini ...
WAMC

The decimal point was in use 150 years before previously thought, research shows

How did the decimal point come to be? - the dot that divides whole numbers. Historians are revising its origin story. Glen Van Brummelen studies the history of math and astronomy at Trinity Western ...