Template:Are You Sure/January 1

• ... that cosmological theorist Giordano Bruno was burned at the stake for heresy after a trial by the Roman Inquisition, during which Bruno's pantheism was a matter of grave concern, although formal charges cited Bruno's denial of several core Catholic doctrines, including eternal damnation, the Trinity, the divinity of Christ, the virginity of Mary, and transubstantiation?

• ... that chromatographic analysis of Golden Spiral unexpectedly revealed "at least five hundred and twelve, perhaps two or even four times as many" previously unknown shades of the color yellow?

• ... that mathematician and physician Ehrenfried Walther von Tschirnhaus is considered by some to have been the inventor of European porcelain, an invention long accredited to Johann Friedrich Böttger (although others believe that porcelain had been made by English manufacturers at an even earlier date)?