1591 (date written), William Shakespeare, “The Second Part of Henry the Sixt,[…]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies.…, London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act II, scene iii]:

IRC supports mechanisms for the enforcement of acceptable behaviour on IRC. Channel operators — chanops or chops — have access to the /kick command, which throws a specified user out of the given channel.

[C]ataract surgery has been employed for more than 20 centuries. The primary surgical technique for the large majority of this time was a procedure called couching. The first written description of couching is from an Indian surgeon, Susruta, circa 600 BC, involving the insertion of a needle into the eye and displacement of the lens out of the visual axis through either inferior or superior dislocation.

The crystal structure of perfringolysin O (PDB: 1PFO) was used as a template for modelling.