Answer
Symmetrical patterns were the creations of Brewster's kaleidoscope. This remarkable device, invented by Sir David Brewster in the early 19th century, utilized mirrors and colorful objects to generate mesmerizing patterns when viewed through an eyepiece. As light passed through the kaleidoscope's intricate arrangement, it reflected off the mirrors and produced an ever-changing display of symmetrical beauty, captivating observers with its endless variations and intricate designs.