From Simple English Wikipedia, the free encyclopedia
1428
(
MCDXXVIII
)
was a
leap year starting on Thursday
of the
Julian calendar
, the 1428th year of the
Common Era
(CE) and
Anno Domini
(AD) designations, the 428th year of the
2nd millennium
, the 28th year of the
15th century
, and the 9th year of the
1420s
decade. As of the start of 1428, the Gregorian calendar was
9 days ahead of the Julian calendar, which was the dominant calendar of the time.