When did the mississippi river become the western boundary of the u. s?

according to greek mythology, persephone, the queen of the underworld, was the daughter of zeus and demeter, the goddess of harvest and fertility. she was also called kore, which means "maiden" and grew up to be a lovely girl attracting the attention of many gods.

explanation:

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.