Original sentence: Another theory attributes tree growth during a time of global cold temperatures during the Little Ice Age associated with unusually low solar activity of the Maunder Minimum, circa 1645 to 1750, during which cooler temperatures throughout Europe are believed to have caused stunted and slowed tree growth, resulting in unusually dense wood.Dendrochronology, or tree-ring dating, has contradicted this claim.Over the centuries, numerous theories have been presented – with none being completely accepted – including an assertion that the wood was salvaged from old cathedrals.Various attempts at explaining these qualities have been undertaken, most results being unsuccessful or inconclusive
Edited sentence: A more modern theory attributes tree growth during a time of global cold temperatures during the Little Ice Age associated with unusually low solar activity of the Maunder Minimum, circa 1645 to 1750, during which cooler temperatures throughout Europe are believed to have caused stunted and slowed tree growth, resulting in unusually dense wood.Dendrochronology, or tree-ring dating, has proved this false.Over the centuries, numerous theories have been presented – and debunked – including an assertion that the wood was salvaged from old cathedrals.Various attempts at explaining these supposed qualities have been undertaken, most results being unsuccessful or inconclusive