As part of the ancient roman army, the cornicen sounded signals on an instrument called the

They played the Cornu, a horn-like instrument.

i this is the answer i looked it up on google so in 2020 new year's occurs on january 1st, 2020 and christmas on december 25th, 2020. these dates are 51 weeks and 2 days apart, not one week apart (during the year new year's occurs before christmas).

like any other technology, art form or field, digital cameras have their own nomenclature. the alphabet soup of jargon can be as confusing and intimidating as trying to understand how all those dials, buttons, levers and menu options affect the pictures and videos that you capture. fear not, because we've defined the most important words, phrases, commands and options you'll need to know when shopping for and learning to operate your new dslr, mirrorless, smartphone or other camera.