With the birth of her baby brother, Princess Charlotte has made history

While the world jubilantly celebrated the newest addition to the royal brood, Princess Charlotte quietly made history. 

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She's just become the first female royal not to be usurped after the birth of a younger brother.

Kensington Palace announced the birth of a baby boy shortly after 1pm BST on Monday. But, for the first time in history, the birth of this male heir will not affect an older female heir's position in line to the throne.