[SunkenCiv]

One that got by the NY Times editor:

for millenniums

s/b "for millennia".

[dr_lew]

You’re way behind. Latin plurals are right out, and have been for years. Well, Webster’s Seventh, Ninth, and Eleventh Collegiate Dictionaries ( 1963, 1984, 2003 ) all list “millennia or millenniums,” but the various style manuals have all gone for english pluralizations, I believe.