>The patents relied on by Sable were filed around the turn of the century, and they addressed the hardware-based router technology of the day. At first I was w

>The patents relied on by Sable were filed around the turn of the century, and they addressed the hardware-based router technology of the day. At first I was wondering what routers existed back in 1900, then realized it was not that turn of the century. I think this is the first time I have see 'turn of the century' refer to 1999->2000. Chicago Manual of Style has some good usage suggestions on this... https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Usage/faq0076.html https://www.chicagomanualofstyle.org/qanda/data/faq/topics/U... >A: Instead, write “at the beginning of the twentieth century,” or “at the end of the nineteenth century,” or “in the years around 1900.” “The turn of the century” is useful only when the context makes it obvious which turn you’re talking about. Of course when talking routers I guess the context was clear.