Watching the Barbie movie felt like studying the men of the Julio-Claudian dynasty.
"Hi, Gaius!"
"Hi, Gaius!"
"Hi, Tiberius!"
"Hi, Gaius!"
"Hi, Tiberius!"
"Hi, Gaius!"
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seen from Germany

seen from Ireland
seen from United States
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seen from Sweden

seen from Malaysia
seen from Saudi Arabia

seen from South Africa

seen from Malaysia
seen from United States
seen from France
seen from Germany
seen from China

seen from Malaysia

seen from Uzbekistan
seen from Netherlands
seen from Spain
Watching the Barbie movie felt like studying the men of the Julio-Claudian dynasty.
"Hi, Gaius!"
"Hi, Gaius!"
"Hi, Tiberius!"
"Hi, Gaius!"
"Hi, Tiberius!"
"Hi, Gaius!"
Roman naming conventions
During Roman Empire, the Romans employed a system of nomenclature, consisting of a combination of personal and family names. It was called Tria Nomina (lit. three names), divided in: praenomen, the name who are normally called with; nomen, which indicated the bloodline of the family or the clan they were from; and cognomen, like surname, which indicated the household such as the modern usage. At times, they would use a third surname, called agnomen, for the ones who were adopted by the new family, but it hadn't a formal use. Between men and women, there were few differences: women usually had father's or husband's praenomen instead of one for theirselves.
An idle thought…
When did the Roman given name (praenomen) Gnaeus die out? Like, who was the last man to be named Gnaeus?
Praenomen Abbreviations
Have you ever translated a sentence perfectly except for one part; the first name of some dude that just has an abbreviated "M." This list should help:
A - Aulus
App - Appius
C - Gaius
Cn - Gnaeus
D - Decimus
F - Faustus
K - Kaeso
L - Lucius
M - Marcus or Manius
Mam - Mamercus
N - Numerius
P - Publius
Post - Postumus
Q - Quintus
Ser - Servius
Sex - Sextus
Sp - Spurius
T - Titus
Ti - Tiberius
In the 1st c. BCE not many names were in circulation, about 18 with only 12 of the names being common. This is why first names are frequently (basically always) abbreviated in Latin texts, you only have so many to choose from.