The 1020s was a decade of the Julian Calendar which began on January 1, 1020, and ended on December 31, 1029.
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
Our result of AD 1021 for the cutting year constitutes the only secure calendar date for the presence of Europeans across the Atlantic before the voyages of Columbus [in 1492]. Moreover, the fact that our results, on three different trees, converge on the same year is notable and unexpected. This coincidence strongly suggests Norse activity at L'Anse aux Meadows in AD 1021.