Is the writing perfect?

[NewHope]

Please tell me the English writing perfect or not:



China is a country with one of the longest histories in the world. The people of all of China's nationalities have jointly created a culture of grandeur and have a glorious revolutionary tradition.

After 1840, feudal China was gradually turned into a semi-colonial and semi-feudal country. The Chinese people waged many successive heroic struggles for national independence and liberation and for democracy and freedom.

Great and earthshaking historical changes have taken place in China in the 20th century.

The Revolution of 1911, led by Dr. Sun Yat-sen, abolished the feudal monarchy and gave birth to the Republic of China. But the historic mission of the Chinese people to overthrow imperialism and feudalism remained unaccomplished.

well the grammar is great, but the content sounds like it was ripped straight from a 50's-era propaganda film. (ie it might make your teachers happy, but if you present it to someone in the west, they're going to laugh, like I just did)

one hint: glorious revolution is ONLY ever used in a sarcastic sense, no one says it with a straight face