Emperor Suizei, also known as Kamununakawamimi no Mikoto (神沼河耳命), was the second legendary emperor of Japan according to the traditional order of succession. Very little is known about this Emperor due to a lack of material available for further verification and study. Suizei is known as a "legendary emperor" among historians as his actual existence is disputed. A legendary account from the Kojiki states that Suizei became emperor after receiving the title of crown prince by his half brother due to his bravery regarding a murder plot. Suizei's reign started in 581 BC, he had one wife and a sole son who supposedly became the next emperor upon his death in 549 BC.
AD 4 was a common year starting on Wednesday or a leap year starting on Tuesday of the Julian calendar and a leap year starting on Tuesday of the Proleptic Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Catus and Saturninus. The denomination "AD 4" 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.
AD 57 (LVII) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Caesar and Piso. The denomination AD 57 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.
In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured.
This article concerns the period 589 BC – 580 BC.
The year 585 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 169 Ab urbe condita. The denomination 585 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.
This article concerns the period 719 BC – 710 BC.
Year 93 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Flaccus and Herennius. The denomination 93 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.
Year 30 BC was either a common year starting on Wednesday, Thursday or Friday or a leap year starting on Thursday of the Julian calendar and a common year starting on Wednesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Octavian and Crassus. The denomination 30 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.
The year 506 BC was a year of the pre-Julian Roman calendar. In the Roman Empire it was known as the Year of the Consulship of Rufus and Aquilinus. The denomination 506 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.
The year 510 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 244 Ab urbe condita. The denomination 510 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.
Year 138 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Serapio and Callaicus and the Third Year of Jianyuan. The denomination 138 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.
Year 215 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Albinus/Marcellus/Verrucosus and Gracchus. The denomination 215 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.
Year 158 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lepidus and Laenas and the Sixth Year of Houyuan. The denomination 158 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.
Year 273 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Licinus and Canina. The denomination 273 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.
The year 632 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 122 Ab urbe condita. The denomination 632 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.
An edict is a decree or announcement of a law, often associated with monarchies, but it can be under any official authority. Synonyms include "dictum" and "pronouncement". Edict derives from the Latin edictum.
The year 581 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 173 Ab urbe condita. The denomination 581 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.
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. For example, the current year is numbered 2025 in the Gregorian calendar, which numbers its years in the Western Christian era.
A regnal year is a year of the reign of a sovereign, from the Latin regnum meaning kingdom, rule. Regnal years considered the date as an ordinal, not a cardinal number. For example, a monarch could have a first year of rule, a second year of rule, a third year of rule, and so on, but not a zeroth year of rule.
