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Years with Same Calendar as 1851 – Extended Range

The year 1851 had 365 days and started on a Wednesday (São Tomé and Príncipe, Gregorian calendar).

This country introduced the modern Gregorian calendar in year 1582, so previous years are based on the Julian calendar. In that calendar system, a Leap Day was added every four years, without the exceptions defined in today's Gregorian calendar. This affects the selection of years listed here.

Years with same starting weekday and equal number of days to 1851
YearCompared to year 1851Since last
1309542 years before 
1315536 years before+ 6 years
1326525 years before+ 11 years
1337514 years before+ 11 years
1343508 years before+ 6 years
1354497 years before+ 11 years
1365486 years before+ 11 years
1371480 years before+ 6 years
1382469 years before+ 11 years
1393458 years before+ 11 years
1399452 years before+ 6 years
1410441 years before+ 11 years
1421430 years before+ 11 years
1427424 years before+ 6 years
1438413 years before+ 11 years
1449402 years before+ 11 years
1455396 years before+ 6 years
1466385 years before+ 11 years
1477374 years before+ 11 years
1483368 years before+ 6 years
1494357 years before+ 11 years
1505346 years before+ 11 years
1511340 years before+ 6 years
1522329 years before+ 11 years
1533318 years before+ 11 years
1539312 years before+ 6 years
1550301 years before+ 11 years
1561290 years before+ 11 years
1567284 years before+ 6 years
1578273 years before+ 11 years
São Tomé and Príncipe adopted today's Gregorian calendar in 1582. All previous years are based on the Julian calendar.
1586265 years before+ 8 years
1597254 years before+ 11 years
1603248 years before+ 6 years
1614237 years before+ 11 years
1625226 years before+ 11 years
1631220 years before+ 6 years
1642209 years before+ 11 years
1653198 years before+ 11 years
1659192 years before+ 6 years
1670181 years before+ 11 years
1681170 years before+ 11 years
1687164 years before+ 6 years
1698153 years before+ 11 years
1710141 years before+ 12 years
1721130 years before+ 11 years
1727124 years before+ 6 years
1738113 years before+ 11 years
1749102 years before+ 11 years
175596 years before+ 6 years
176685 years before+ 11 years
177774 years before+ 11 years
178368 years before+ 6 years
179457 years before+ 11 years
180051 years before+ 6 years
180645 years before+ 6 years
181734 years before+ 11 years
182328 years before+ 6 years
183417 years before+ 11 years
18456 years before+ 11 years
1851selected year+ 6 years
186211 years after+ 11 years
187322 years after+ 11 years
187928 years after+ 6 years
189039 years after+ 11 years
190251 years after+ 12 years
191362 years after+ 11 years
191968 years after+ 6 years
193079 years after+ 11 years
194190 years after+ 11 years
194796 years after+ 6 years
1958107 years after+ 11 years
1969118 years after+ 11 years
1975124 years after+ 6 years
1986135 years after+ 11 years
1997146 years after+ 11 years
2003152 years after+ 6 years
2014163 years after+ 11 years
2025174 years after+ 11 years
2031180 years after+ 6 years
2042191 years after+ 11 years
2053202 years after+ 11 years
2059208 years after+ 6 years
2070219 years after+ 11 years
2081230 years after+ 11 years
2087236 years after+ 6 years
2098247 years after+ 11 years
2110259 years after+ 12 years
2121270 years after+ 11 years
2127276 years after+ 6 years
2138287 years after+ 11 years
2149298 years after+ 11 years
2155304 years after+ 6 years
2166315 years after+ 11 years
2177326 years after+ 11 years
2183332 years after+ 6 years
2194343 years after+ 11 years
2200349 years after+ 6 years
2206355 years after+ 6 years
2217366 years after+ 11 years
2223372 years after+ 6 years
2234383 years after+ 11 years
2245394 years after+ 11 years
2251400 years after+ 6 years
2262411 years after+ 11 years
2273422 years after+ 11 years
2279428 years after+ 6 years
2290439 years after+ 11 years
106 years share the calendar of year 1851 in the 1000-year time span from 1300 to 2299.
Note that holidays will not match exactly. Selected year is highlighted.

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