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Alfred Wegener came up with his theory that all the continents were together
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Wegener proposed that there was a land bridge connecting Africa with Brazil
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Wegener also found fossils in Europe and North America, and Madagascar and India.
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Wegener published a book "The Origin of Continents and Oceans"
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Wegener's ideas began to be dismissed
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Period: to
Arthur Holmes began elaborating on Wegener's many hypothesis
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Holmes theories began getting attention
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Holmes' work led Harry Hess and R.Deitz to publish similar hypotheses based on mantle convection currents, now known as "sea floor spreading"
