Newton’s Principia Mathematica was written in Latin; Einstein’s first influential papers were written in German; Marie Curie’s work was published in French. Yet today, most scientific research around the world is published in a single language, English.
Since the middle of the last century, things have shifted in the global scientific community. English is now so prevalent that in some non-English speaking countries, like Germany, France, and Spain, English-language academic papers outnumber publications in the country’s own language several times over. In the Netherlands, one of the more extreme examples, this ratio is an astonishing 40 to 1.