I do take issue with the writer of the article whe it’s stated that the Pleiades are “nicknamed” the Seven Sisters.
The Ancient Greeks called them that- in Greek mythology they were the “daughters of Pleione, a sea nymph.
Another nearby star cluster The Hyades, was considered sisters of the Pleiades, born of Pleione and Atlas. I love how ancient cultures created mythologies based on what they saw in the night sky. The Greeks, Romans, Egyptians, the Japanese, the Turks, even the native Americans and Inuits. All had their own .