The printing press and paper books
The code talkers contributed mostly to enhancing methods of coding secret information.
Code talking was pioneered by the Cherokee and Choctaw people during World War 1.
The term code speakers refers to a group of people in the 20th century who utilized little known tribal languages as a mean of secret communication during war time.
The Marine Corps recruited the Navajo Code Talkers in 1941 and 1942. Twenty night people from the Navajo tribe were asked to develop a code within their language. They used their everyday tribal languages to convey classified messages. There was a special Navajo word for each letter of the English alphabet. After this, A Code Talking school was established and 400 more Navajos recruited. They had to complete an extensive training in communication and memorizing the code.
The Korean War was the first militarized instance of containment, as U.S. and South Korea fought against communist North Korea. ... When the UN Security Council voted to aid South Korea in stopping North Korean aggression, the U.S. agreed to send troops to the Korean Peninsula.
<span>The ruling was not received well in the south, and some of those vestiges still remain to this day. The end of segregated schooling, which had to be rectified "with all deliberate speed," took quite a while to occur. Even today, there are schools that, while they might not be segregated on a "de jure" basis, are still "de facto" separated based on racial characteristics.</span>
In August 1945, the US dropped atomic bombs over Japanese cities, Hiroshima and Nagasaki. Hope this helped!
