4umi.com/year

< MCDLV = 1455 >

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Events in 1455

8 January: Pope Nicholas V issues the papal bull “Romanus Pontifex” granting Portugal dominion over all lands discovered or conquered during the Age of Discovery.
22 March: Portuguese explorer Alvise Cadamosto sets sail from Lisbon to map the Madeira and Canary Islands.
6 April: The resurrection of Jesus Christ is celebrated on Easter Sunday after the first full moon after the spring equinox since the Council of Nicaea in 325.
11 April: Jews celebrate Pesach for the next seven or eight days.
25 May: Seven weeks after Easter Christians celebrate Pentecost, possibly since 68 AD.
15 Augustus: The thirty days of Ramadan in the Islamic year 859 begin at the first sighting of the lunar crescent.
14 September: Muslims celebrate the Conclusion of the Fast on the first day of the month Shawwal.
1 October: Jews celebrate Yom Kippur since sunset last night.
21 November: Muslims celebrate the Festival of Sacrifice on the tenth day of the month Dhu al-Hijjah.

People in 1455

Donatello, Johannes Gutenberg, John Brugman, Niclas Gerhaert van Leyden, Cosimo de' Medici, Henry the Navigator, Philip the Good, Nezahualcoyotl, Jami, Henry VI, Johannes Müller, Ivan III the Great, Lorenzo de' Medici, Christopher Columbus, Richard III, Leonardo da Vinci and Amerigo Vespucci celebrated their birthday this year.

Presenting 1455

The year 1455 was a common year starting on a Wednesday, just like 1365, 1371, 1382, 1393, 1399, 1410, 1421, 1427, 1438 and 1449 in the century before it and 1466, 1477, 1483, 1494, 1500, 1505, 1511, 1522, 1533, 1539 and 1550 in the next.

The coloured days highlight birthscake, deathsdagger, politicalcrown, scientificpaperclip, artisticpaperclip and otherasterisk historical milestones, and recurring events such as anniversaries and holidaysanchor. The newnew moon, waxingwaxing moon, fullfull moon and waningwaning moon icons indicate the phases of the moon and appear only for dates in the Gregorian calendar, i.e. after 14 October 1582. The Chinese calendar is available only from 1645 to 2644, the first millenium since the last reform. The coloured columns mark the Sundays, the last day of the week per standard ISO-8601.

Calculating time

The normal calendar page for the current /year?2017 contains an introduction to the intriguing history of the year as we know it. The Calendar Converter has more detail. The so called Perpetual Calendar uses a trick from before the age of computers to find the weekday for any Gregorian date. Also see an overview of all historical events in the last six thousand years.

URL: < http://4umi.com/year?1455 >, created 23 January 2011, changed 13 September 2012, served 27 July 2017.
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