Which event proved that the u. s. purchase of alaska had been a good investment?

Finding of gold

Explanation:

In 1867, Russia sold the United States to Alaska for $ 7.2 million. Only during the first 50 years of rule over the country did Americans earn at least 100 times more from it.

After a short time, rivers of gold flowed from the ice chest. A gold rush began in Alaska in Klondike, which brought fabulous wealth to the United States. Of course Russia must feel regret. However, no one can know what kind of relationships would have prevailed in the world if this sale had not taken place.

e. all of em

~courtney