The earliest of these use a series of Phoenician symbols to represent the dates, whereas the later shekels and half shekels use the Greek letters shown on the table above, with year 1 starting in 126/5 B. The Ptolemaic system is relatively hard to decipher since most every dated silver coin uses the same design formula (portrait of the founder-king, Ptolemy I, and a standing eagle), and the coins often look quite similar from king to king, with there being only subtle differences in style and fabric that require intensive academic study to decipher. Some used the Greek alphabet with the letters Alpha through Omega representing the numbers 1-24 consecutively.
Some cities used Phoenician symbols, and the Nabataeans used their own numbering system.
For the most part, regnal dates were used in Egypt under the Ptolemaic rulers, and with the long series of Roman provincial coins issued at the mint of Alexandria.
Though various numbering systems were used to represent the regnal years, the most common was the use of Greek letter(s) with known translations into numbers.
The coin featured the face of Nero, the Roman emperor best known for playing the fiddle while ancient Rome burned.
The same year a team of archeologists found up to 10 Roman and Ottoman coins in a ruined castle in Okinawa, Japan.
For many coins, it is possible only to estimate when it was struck based on hoard evidence, style and fabric (physical characteristics), or historical context. Instead, dates are rendered based on a known era, principally the era of a kingdom, a particular ruler, or an event, such as when a city achieved its independence.
Often, this means a date may only be narrowed down to a particular century or two. Many era dates are used, but the most common is that of the Seleucid Kingdom, in which year 1 was 312 B.
Centinaia di monete d'oro della tarda epoca imperiale sono state rinvenute in pieno centro a #Como, in un recipiente in pietra ollare di forma inedita.
“Una scoperta che mi riempie di orgoglio” ha detto il ministro @Bonisoli Alberto pic.twitter.com/ff6ep38gt G— Mi BAC (@_Mi BAC) September 7, 2018The historic Cressoni Threater was first opened in 1870 before later becoming a cinema, which closed in 1997.
Before the battle, he saw the words "In Hoc Signo Victor Eris" (By this sign you shall conquer) emblazoned on the sun around the Chi Rho, the symbol of Christianity.
After placing this Christogram on the shields of his army, he defeated his opponent and thus ruled the empire through divine providence.
Geoffrey of Monmouth expanded this story in his highly fictionalized Historia Regum Britanniae, an account of the supposed Kings of Britain from their Trojan origins to the Anglo-Saxon invasion.