Everything you always wanted to know about typing keyboards, but were afraid to ask, has now been compiled into a two-volume work of over 1200 pages, which is available for preorder <https://arstechnica.com/culture/2023/10/shift-happens-is-a-beautifully-designed-history-of-how-keyboards-got-this-way/>. Coincidentally or not, this year is also the 150th anniversary of the QWERTY keyboard layout. Did you know that, back in the latter 19th century, there was a battle over whether it was better to have fewer typing keys with more shift modifier keys, or to give more characters their own keys and use fewer shifts? The question was seemingly settled, not by any issue of technical superiority one way or the other, but just because models with fewer keys in total were popular in the marketplace for other reasons. But what was the significance of the key with the three dots on it on the first-ever typewriter with a proper QWERTY keyboard?