Analysis of information sources in references of the Wikipedia article "Leif Erikson" in English language version.
With an assumed total systematic error of 30 ± 20 years, as a mean for various tree rings, the calibrated age range of L'Anse aux Meadows is AD 975–1020. This agrees well with the assumed historical age of ca AD 1000, a result which has also been recently corroborated by high-precision accelerator dating at the University of Toronto.
This is a substantial base for analysis, which yields an entirely credible range of dates between 990 and 1050 and a mean date of 1014 CE, which is popularly rounded off at 1000 CE .
For quite a few years, and even prior to the time that I first came to Congress, similar resolutions had been introduced, seeking to have October 9 declared Leif Erikson Day. All of the previous efforts have been unsuccessful.
With an assumed total systematic error of 30 ± 20 years, as a mean for various tree rings, the calibrated age range of L'Anse aux Meadows is AD 975–1020. This agrees well with the assumed historical age of ca AD 1000, a result which has also been recently corroborated by high-precision accelerator dating at the University of Toronto.
Modeling results were remarkably consistent, and model A suggests Norse occupation began Cal AD 910–1030..... A weighted mean of twig dates—notwithstanding issues associated with combination of 14C ages from multiple individuals—provided a result of AD 986–1022
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. 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. In addition, our research demonstrates the potential of the AD 993 anomaly in atmospheric 14C concentrations for pinpointing the ages of past migrations and cultural interactions.
Conflict with the Norwegian authorities was one of the main motivations for emigrating to America. Quakers were not allowed to live everywhere in Norway...This led to the first organized emigration in 1825.
With an assumed total systematic error of 30 ± 20 years, as a mean for various tree rings, the calibrated age range of L'Anse aux Meadows is AD 975–1020. This agrees well with the assumed historical age of ca AD 1000, a result which has also been recently corroborated by high-precision accelerator dating at the University of Toronto.
Modeling results were remarkably consistent, and model A suggests Norse occupation began Cal AD 910–1030..... A weighted mean of twig dates—notwithstanding issues associated with combination of 14C ages from multiple individuals—provided a result of AD 986–1022
Leif did not encounter any Indigenous people over the entire voyage
{{cite book}}: CS1 maint: location missing publisher (link)Modeling results were remarkably consistent, and model A suggests Norse occupation began Cal AD 910–1030..... A weighted mean of twig dates—notwithstanding issues associated with combination of 14C ages from multiple individuals—provided a result of AD 986–1022
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. 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. In addition, our research demonstrates the potential of the AD 993 anomaly in atmospheric 14C concentrations for pinpointing the ages of past migrations and cultural interactions.
Modeling results were remarkably consistent, and model A suggests Norse occupation began Cal AD 910–1030..... A weighted mean of twig dates—notwithstanding issues associated with combination of 14C ages from multiple individuals—provided a result of AD 986–1022
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. 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. In addition, our research demonstrates the potential of the AD 993 anomaly in atmospheric 14C concentrations for pinpointing the ages of past migrations and cultural interactions.
Here [L'Anse aux Meadows] Norse expeditions sailed from Greenland, building a small encampment of timber-and-sod buildings ...
Grapes, I knew grapes from having seen them last year.
One bunch of them, and there began to be
Bunches all round me growing in white birches,
The way they grew round Leif the Lucky's German;
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. 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. In addition, our research demonstrates the potential of the AD 993 anomaly in atmospheric 14C concentrations for pinpointing the ages of past migrations and cultural interactions.
Conflict with the Norwegian authorities was one of the main motivations for emigrating to America. Quakers were not allowed to live everywhere in Norway...This led to the first organized emigration in 1825.
Here [L'Anse aux Meadows] Norse expeditions sailed from Greenland, building a small encampment of timber-and-sod buildings ...
With an assumed total systematic error of 30 ± 20 years, as a mean for various tree rings, the calibrated age range of L'Anse aux Meadows is AD 975–1020. This agrees well with the assumed historical age of ca AD 1000, a result which has also been recently corroborated by high-precision accelerator dating at the University of Toronto.
This is a substantial base for analysis, which yields an entirely credible range of dates between 990 and 1050 and a mean date of 1014 CE, which is popularly rounded off at 1000 CE .
Leif did not encounter any Indigenous people over the entire voyage
{{cite book}}: CS1 maint: location missing publisher (link)With an assumed total systematic error of 30 ± 20 years, as a mean for various tree rings, the calibrated age range of L'Anse aux Meadows is AD 975–1020. This agrees well with the assumed historical age of ca AD 1000, a result which has also been recently corroborated by high-precision accelerator dating at the University of Toronto.
Modeling results were remarkably consistent, and model A suggests Norse occupation began Cal AD 910–1030..... A weighted mean of twig dates—notwithstanding issues associated with combination of 14C ages from multiple individuals—provided a result of AD 986–1022
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. 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. In addition, our research demonstrates the potential of the AD 993 anomaly in atmospheric 14C concentrations for pinpointing the ages of past migrations and cultural interactions.