The 310s decade ran from January 1, 310, to December 31, 319.
The 150s decade ran from January 1, 150, to December 31, 159.
The 170s decade ran from January 1, 170, to December 31, 179.
Year 156 (CLVI) was a leap year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Silvanus and Augurinus. The denomination 156 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 313 (CCCXIII) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantinus and Licinianus. The denomination 313 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 year is notable for ending of the persecution of Christians in the Roman Empire.
Year 230 (CCXXX) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Agricola and Clementinus. The denomination 230 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 235 (CCXXXV) was a common year starting on Thursday of the Julian calendar, the 235th Year of the Common Era (CE) and Anno Domini (AD) designations, the 235th year of the 1st millennium, the 35th year of the 3rd century, and the 6th year of the 230s decade. At the time, it was known as the Year of the Consulship of Severus and Quintianus. The denomination 235 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 251 (CCLI) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Etruscus. The denomination 251 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 350s decade ran from January 1, 350, to December 31, 359.
The 230s decade ran from January 1, 230, to December 31, 239.
The 250s was a decade that ran from January 1, 250, to December 31, 259.
Year 238 (CCXXXVIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Pius and Pontianus. The denomination 238 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 237 (CCXXXVII) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Perpetuus and Felix. The denomination 237 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 250 (CCL) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Gratus. The denomination 250 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 260 (CCLX) was a leap year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Saecularis and Donatus. The denomination 260 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 310 (CCCX) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Andronicus and Probus. The denomination 310 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 311 (CCCXI) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valerius and Maximinus. The denomination 311 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.
Pope Pontian was the bishop of Rome from 21 July 230 to 28 September 235. In 235, during the persecution of Christians in the reign of the Emperor Maximinus Thrax, Pontian was arrested and sent to the island of Sardinia.
Pope Fabian was the bishop of Rome from 10 January 236 to his death on 20 January 250, succeeding Anterus. A dove is said to have descended on his head to mark him as the Holy Spirit's unexpected choice to become the next pope. He was succeeded by Cornelius.
Year 222 (CCXXII) was a common year starting on Tuesday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Antoninus and Severus. The denomination 222 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.
