28 BC

28 BC in various
AG
Thai solar calendar	515–516
Tibetan calendar	阳水龙年; (male Water-Dragon); 99 or −282 or −1054; — to —; 阴水蛇年; (female Water-Snake); 100 or −281 or −1053

Millennium:	1st millennium BC
Centuries:	2nd century BC; 1st century BC ; 1st century;
Decades:	40s BC; 30s BC; 20s BC ; 10s BC; 0s BC;
Years:	31 BC; 30 BC; 29 BC; 28 BC ; 27 BC; 26 BC; 25 BC;

Year 28 BC was either a common year starting on Saturday, Sunday or Monday or a leap year starting on Saturday or Sunday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Saturday of the Proleptic Julian calendar. At the time, it was known as the Year of the First Consulship of Octavian and Agrippa (or, less frequently, year 726 Ab urbe condita). The denomination 28 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

Roman Consul for the sixth time. His partner Marcus Vipsanius Agrippa
becomes Consul for the second time.

The Roman Senate grants Octavian Caesar imperium maius (supreme command) of the Roman armed forces (Around 28 legions).
Augustus initiates a census of the Roman Republic for the first time since 69 BC.^[1]

^ "LacusCurtius • Res Gestae Divi Augusti (II)". penelope.uchicago.edu. Retrieved February 22, 2017.
^ "The Observation of Sunspots". UNESCO Courier. 1988. Archived from the original on June 28, 2012. Retrieved July 14, 2010.