WRISTWATCHES
Wristwatches were not served to people on a platter. The British army had to wage wars in the 1880s to realize how cumbersome it was to leave timekeeping for pocket watches. And hence, they switched to wrist watches. Cometh 21st century, and once again people are switching back to pockets to access time. Don't go back in time, or we send you back to the battlefields.