From Livius.org:
The first to describe proskynesis ("kissing towards") was the Greek researcher Herodotus of Halicarnassus:
"When the Persians meet one another in the roads, you can see whether
I had an unconsummated and ideal love with someone both proximate yet fascinatingly unknowable, I had been initiated into the secret cant of cash-register operators and given a uniform, and I was getting free cheeseburgers nearly every time I turned around.