of equal extent

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In point of fact, the country which is the scene of the following tale has undergone as little change, since the historical events alluded to had place, as almost any other district of equal extent within the whole limits of the United States.
Where on the globe can there be found an area of equal extent with that occupied by the bulk of our States, so fertile and so rich and varied in its productions, and at the same time so habitable by the European, as this is?
It may be questioned whether in the whole world another town of equal extent and importance can be found, so destitute of public monuments as Birmingham.