I believe the answer is 4. During the reign of Askia Muhammad, the Songhai empire reached its greatest size.
Askia Muhammad was an emperor, military commander, and political reformer of the Songhai Empire in the 15th century. His rule resulted in trade with Europe and Asia, building of lots of schools, and spread of Islam through his empire.
Hope this helps! Please let me know if I'm wrong :)
Over the years of history, there have been several technological inventions that have improved the value of Human life. Some of these inventions dating as far back as 450CE are still in Use to this day.
Below you can read more about Technological inventions between 450CE and 1600CE that are still impactful to this day.
<h3>Technological inventions between 450CE and 1600CE</h3>
PAPER MONEY
Paper money is one of the most important inventions that is still useful to this that. The earliest known use of Paper money was during the Tang Dynasty.
This invention came handy at a time carrying large sums of money was difficult and there was shortage of supply of metal.
Also people needed a central value to carry out Trade.
WINDMILLS
Windmill is yet another invention withing the time frame that is still relevant to this day.
Windmill involves the use of wind to create energy. The first windmills were used to mill grain. The Persians were known to be the first to invent a functional windmill in the 9th Century and this had 'sails' that rotated horizontally instead of vertically as we typically see today.
Learn more about technological inventions at brainly.com/question/24839581
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The passage of the Kansas- Nebraska Act
Containment was a United States policy using numerous strategies to prevent the spread of communism abroad. A component of the Cold War, this policy was a response to a series of moves by the Soviet Union to enlarge its communist sphere of influence in Eastern Europe, China, Korea, and Vietnam.