From Simple English Wikipedia, the free encyclopedia
1620
(
MDCXX
)
was a
leap year
starting on Wednesday
of the
Gregorian calendar
and a
leap year starting on Saturday
of the
Julian calendar
, the 1620th year of the
Common Era
(CE) and
Anno Domini
(AD) designations, the 620th year of the
2nd millennium
, the 20th year of the
17th century
, and the 1st year of the
1620s
decade. As of the start of 1620, the Gregorian calendar was
10 days ahead of the Julian calendar, which remained in localized use until 1923.