April 21st has fallen on Easter Sunday in several years, notably in 1935 and 1946. The date of Easter varies each year, as it is determined by the first Sunday after the first full moon following the vernal equinox. Since the Easter date shifts, instances of April 21st coinciding with Easter are relatively rare.
Easter Sunday will next fall on April 21 in 2019.
Easter falls on April 25 only once in each century from the 17th century through the 24th century (I have not yet calculated the Easter dates past 2399). In the 21st century, the year is 2038. The next time after that is in 2190.
Easter Sunday has fallen on April 24 in 1859. Easter Sunday will next fall on April 24 in 2011 and then in 2095.
Easter Sunday has fallen on April 4 in the years 1706, 1779, 1790, 1847, 1858, 1915, 1920, 1926, 1999 and 2010. Easter Sunday will next fall on April 4 in 2021.
In the past 40 years Easter Sunday has been on the 20th of April in 2003 and 2014. Before 2003, it was last on the 20th of April in 1930 and after 2014 it will next be on the 20th of April in 2025.
During the past 100 years (1913-2012), Easter has fallen on April 20th four times: in 1919, in 1924, in 1930 and in 2003.By the way, Easter falls on April 20th four times during the next 100 years (2013-2112) as well: in 2014, in 2025, in 2087 and in 2098. It's unusual that Easter falls on April 20 five times during the 21st century; in most centuries it falls on April 20 only two or three times.
Easter can be on any day between the 22nd of March and the 25th of April, so yes, it often has fallen on the 6th of April. In the past century it did so in 1947, 1958, 1969 and 1980 and will next do so in 2042.
Easter Sunday has previously fallen on April 24 in 1859 and 2011. Easter Sunday will next fall on April 24 in 2095.Easter has fallen on April 24th only 5 times in 1639,1707, 1791, 1859, and 2011.
Easter Sunday has fallen on April 17 in the years, 1718, 1729, 1740, 1808, 1870, 1881, 1892, 1927, 1938, 1949 and 1960. Easter Sunday will next fall on April 17 in 2022.
During the past century, Easter fell on April 9th in 1939, in 1944 and in 1950. The next time will be in 2023.
Easter Sunday has fallen on April 22 in the years 1753, 1764, 1810, 1821, 1832, 1962, 1973 and 1984. So in the last 50 years Easter Sunday has only fallen on April 22nd 3 times. Easter Sunday will again fall on this date in 2057.
2063 Unless you are asking about the Orthodox Easter, which is a different date from the Western Easter date. Used the following link: http://users.chariot.net.au/~gmarts/eastcalc.htm