Are there any mistakes in this speech?

I am Lin Zexu, come from Qing Dynasty. In 1839, I destroyed 20,000 boxes of Opium on Humen Beach. Nowadays, you can see my statue in the Sea Battle Museum. This museum is one of the historical heritages of Dongguan. Many precious artifacts and documents are displayed here, telling the history of the Opium War.
When I stand in the museum, I can see millions of visitors from all over the world. They watch the artifacts and feel the pain and misery. For a nation to be in control of its fate, its people must possess wisdom and courage to survive and thrive. So, the Sea Battle Museum is not only a treasure for Dongguan, but also a fortune for all humanity.

Question

Are there any mistakes in this speech?

I am Lin Zexu, come from Qing Dynasty. In 1839, I destroyed 20,000 boxes of Opium on Humen Beach. Nowadays, you can see my statue in the Sea Battle Museum. This museum is one of the historical heritages of Dongguan. Many precious artifacts and documents are displayed here, telling the history of the Opium War. 
When I stand in the museum, I can see millions of visitors from all over the world. They watch the artifacts and feel the pain and misery. For a nation to be in control of its fate, its people must possess wisdom and courage to survive and thrive. So, the Sea Battle Museum is not only a treasure for Dongguan, but also a fortune for all humanity.

Answer

Lin Zexu came from the Qing Dynasty

Answer

Hi Wendy. You wouldn't say 'I am....', but X was
... At the beginning of your speech.