‘World’s Oldest Known Periodic Table Found’
The chart of elements dating back to 1885. Image: University of St. Andrews "A classroom chart bearing an early version of the periodic table of elements has been discovered in a University of St. Andrews chemistry lab. Dating back to the 1880s, the chart is thought to be the world’s oldest. The storage room of the chemistry department at the Scottish university hadn’t been properly cleaned since the facility opened in 1968, prompting a months-long effort to tidy up back in 2014, according to a news release issued today by the University of St. Andrews. Among [...]