Do you know the significance of Queen Ann's lace?

Queen Ann’s lace is a common wildflower native to Europe that can also be found in the U.S. Some consider it invasive, but at my local wildflower preserve, it plays well with others. It has pretty white lacy flowers (picture ) but also closely resembles the highly poisonous native water hemlock. I recently learned the historical importance of Queen Ann’s lace. Do you know what it is?