Many of today's grammar rules can be traced to the opinions of one 18th century writer.
These people needed a computer
Soop, wimmen, and headake did not make the cut
What about Day Tomorrow?
How to 'amuse-bouche' without begging pardon for your French
They started as same word, but their meanings have drifted apart over time.
'Poets laureate'? 'Court-martials'? The curious history of postpositive adjectives in English.