Why did it take John White so long to return to Roanoke Island?

The first Roanoke colonists did not fare well, suffering from dwindling food supplies and Indian attacks, and in 1586 they returned to England aboard a ship captained by Sir Francis Drake. ... White returned to England to procure more supplies, but the war with Spain delayed his return to Roanoke.

congress passed a bill granting Missouri statehood as a slave state under the condition that slavery was to be forever prohibited in the rest of the Louisiana Purchase north of the 36th parallel, which runs approximately along the southern border of Missouri.