ca is an abbreviation for the Latin word circa, meaning around, or approximately.
So, the date is approximately 251 CE.
Notice that ca is in italics, and not capitalised; this indicates it represents a foreign word.
Agatha was an ancient martyr: born: 231 AD – died: 251 AD.
The flight mileage is 156 miles or 251 km.
The driving distance between San Jose and Redding CA is about 251 road miles.
Advocacy has four syllables. It is pronounced as ad-vo-ca-cy.
Californium, Symbol: Cf, Atomic Number: 98, Atomic Weight: 251
It is 251 miles according to Google Maps.
'Constantine the Great''Saint Constantine'Flavius Valerius Constantinus(AD ca. 285 - AD 337)
ca. 400 AD
You can place an ad for the car you wish to sell in your local Car Trader, you local newspaper's classified ad section, or on www.craigslist.com.
The height of Saint Christopher is not known. He died around 251 AD and is the Patron Saint of bachelors, travel, and sailors.
251 = 251/1
Decius is a Roman family name. One of the most notable members of this family was Roman Emperor Decius, who ruled from AD 249 to 251. The name Decius itself may have originated from the Latin word "decem," meaning ten.