THEORY : In 1914, Alfred Wegener proposed an idea commonly known as "The Origin of Continents and Oceans - Theory of Continental Drift.
(Alfred Wegener; proposed; an idea commonly known as "The Origin of Continents and Oceans - Theory of Continental Drift; T:In 1914) (an idea; commonly known; as "The Origin of Continents and Oceans - Theory of Continental Drift)
Alfred Wegener an idea
proposed commonly known
an idea commonly known as "The Origin of Continents and Oceans - Theory of Continental Drift T:In 1914
as "The Origin of Continents and Oceans - Theory of Continental Drift