7) Why did Revere need a signal from the Old North Church?

Why did Revere need a signal from the Old North Church?

"This signal, from the tallest structure in the town of Boston, served as an early warning that a detachment of the British Army was crossing the Charles River and heading west towards the towns of Lexington and Concord. By the end of the next night, the American Revolutionary War had begun."

The place for the signal, the Old North Church in Boston's North end was chosen for two reason.

The signal was meant to warn patriots in Chalrestown, and across the river from Boston in case Paul Revere couldn't deliver the message there from Boston to start his ride.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.