Leap year starting on Saturday in the context of "AD 500"

Year 1 BC was a common year starting on Friday or Saturday in the Julian calendar (the sources differ; see leap year error for further information) and a leap year starting on Thursday in the proleptic Julian calendar. It was also a leap year starting on Saturday in the Proleptic Gregorian calendar. At the time, it was known as the Year of the Consulship of Lentulus and Piso (or, less frequently, year 753 Ab urbe condita). The denomination 1 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 following year is AD 1 in the widely used Julian calendar and the proleptic Gregorian calendar, neither of which have a "year zero".

1816 (MDCCCXVI) was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Saturday of the Julian calendar, the 1816th year of the Common Era (CE) and Anno Domini (AD) designations, the 816th year of the 2nd millennium, the 16th year of the 19th century, and the 7th year of the 1810s decade. As of the start of 1816, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.

This year was known as the Year Without a Summer, because of low temperatures in the Northern Hemisphere, possibly the result of the 1815 eruption of Mount Tambora in Indonesia, causing severe global cooling, catastrophic in some locations.

A common year starting on Tuesday is any non-leap year (i.e. a year with 365 days) that begins on Tuesday, 1 January, and ends on Tuesday, 31 December. Its dominical letter hence is F. The most recent year of such kind was 2019, and the next one will be 2030, or, likewise, 2025 and 2031 in the obsolete Julian calendar, see below for more.

Any common year that starts on Tuesday has two Friday the 13ths: those two in this common year occur in September and December. Leap years starting on Monday share this characteristic. From July of the year preceding this year until September in this type of year is the longest period (14 months) that occurs without a Friday the 13th. Leap years starting on Saturday share this characteristic, from August of the common year that precedes it to October in that type of year.

1600 (MDC) was a century leap year starting on Saturday of the Gregorian calendar and a leap year starting on Tuesday of the Julian calendar, the 1600th year of the Common Era (CE) and Anno Domini (AD) designations, the 600th year of the 2nd millennium, the 100th and last year of the 16th century, and the 1st year of the 1600s decade. As of the start of 1600, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

The year 1600 was the end of the 16th century and the start of the 17th century. In the Gregorian calendar, it was the first century leap year and the last until the year 2000.

1656 (MDCLVI) was a leap year starting on Saturday of the Gregorian calendar and a leap year starting on Tuesday of the Julian calendar, the 1656th year of the Common Era (CE) and Anno Domini (AD) designations, the 656th year of the 2nd millennium, the 56th year of the 17th century, and the 7th year of the 1650s decade. As of the start of 1656, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

1648 (MDCXLVIII) was a leap year starting on Wednesday of the Gregorian calendar and a leap year starting on Saturday of the Julian calendar, the 1648th year of the Common Era (CE) and Anno Domini (AD) designations, the 648th year of the 2nd millennium, the 48th year of the 17th century, and the 9th year of the 1640s decade. As of the start of 1648, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

The year 1648 has been suggested as possibly the last time in which the overall human population declined, coming towards the end of a broader period of global instability which included the collapse of the Ming dynasty and the Thirty Years' War, the latter of which ending in 1648 with the Peace of Westphalia.

2000 (MM) was a century leap year starting on Saturday of the Gregorian calendar, the 2000th year of the Common Era (CE) and Anno Domini (AD) designations, the 1000th and last year of the 2nd millennium, the 100th and last year of the 20th century, and the 1st year of the 2000s decade.

2000 was designated as the International Year for the Culture of Peace and the World Mathematical Year.