Word: erased
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Other eras were turbulent, insecure and complex ? the great migrations after the fall of the Roman Empire; the age of discovery; Copernicus and Galileo's tink ering with the universe, removing the earth and man from its center; the industrial revolution. But in a sense, the 20th century U.S...
The Middle West is littered with deposits of rocky glacial debris, in widely scattered areas and apparently dating from widely separated eras. Most glaciologists account for them by a theory that the huge Pleistocene glacier advanced and retreated four times, dropping its deposits each time as it melted back. Last...
There are two exhibitions in Cambridge this month which are totally independent of each other but which invite comparison. One is the work of a student, the other of a lifetime. Their qualities are unlike and their eras disparate. Oddly, their weaknesses are much the same and a lesson lies...
We remember, yes, but we must not forget, that there have existed other eras, and other Generations--Generations that have made just as important contributions as our Wheaties Democracy, to the rich fund of Americana.
The next unity is biology--a brief study of evolution from the single cell up to the mammal. Geology is brought in again to tie things together, as the various geologic eras provide a frame for locating different developments in evolution. And geology furnishes a good transition to studies of...