Generally, there were two major factors that led to the decline of the Yuan Dynasty: one was the class conflict caused by the heavy taxation, the other one was the ethnic contradiction resulting from the 'Four Class System'. ... Also, power struggles within the ruling class became more and more serious.
<span>The United States invades Panama in an attempt to overthrow military dictator Manuel Noriega, who had been indicted in the United States on drug trafficking charges and was accused of suppressing democracy in Panama and endangering U.S. nationals. Noriega’s Panamanian Defense Forces (PDF) were promptly crushed, forcing the dictator to seek asylum with the Vatican anuncio in Panama City, where he surrendered on January 3, 1990.</span>
The school system in India has four levels: lower primary(age 6 to 10), upper primary(11 to 12), high(13 to 15) and higher secondary(17 to 18). The lower primary school is divided into five”standards”, upper primary school into two, high school into three and higher secondary into two. Hopefully this helps you.