Reading section: Archeologists have found sites all over North America

Hi,

Please help me with the following reading:

The postage stamp has been around for only a relatively short period of time. The use of stamps for postage was first proposed in England in 1837, when Sir Rowland Hill published a pamphlet entitled “Post Office Reform: Its importance and Practicability” to put forth the ideas that postal rates should not be based on the distance that a letter or package travels but should instead be based on the weight of the letter or package and that fees for postal services should be collected in advance of the delivery, rather than after, through the use of postage stamps.

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Sorry.

oh, I misread the answer and then eddited my question,
I’ll make it in the order again
thanks very much

The correct answer is that 1837 is in the [color=blue]first half of the nineteenth century.