Hello! My name is John. I'm a boy. I'm eleven years old. I have three friends. They are May, Peter and Xiao Mao. May is a girl. She is twelve years old. She is from Canada. Peter is a boy. He is thirteen years old. He is from China. Xiao Mao is a boy. He is two years old, He likes eating meat. Haha, he is a dog!

根据上面短文的意思判断下面的句子是否正确。

《共产党宣言》的发表标志着（　　）

I don't want to be i____ in their quarrel.