-Noted the relationship between climate and tree growth

-wrote Trattato della Pittura mentioning tree rings

Italy 1581

-The idea of counting tree rings to attain tree age was related to Montigne by an unnamed carpenter

France 1737

-Counted rings to determine the date of a conspicuous frost ring

Sweden 1707-1778

-Counted rings to determine age of trees

Conneticut 1827

-Used crossdating and notes the common signal across a site

Germany 1837

-Set up the ecological basis for dendrochronology in Germany

England 1838

-Noted the concepts of competition, compliancy, replication, reaction wood in trees, parent trees, climate reconstruction, and specific tree-ring patterns from storms and floods