Translation of "1990" in Chinese

Our school was founded in 1990.

我們的學校是在一九九零年創立的。

She was born at six a.m. on July 17, 1990.

她是在一九九零年七月十七日的早上六時出生的。

The company went public and became listed on the stock exchange in 1990.

该公司于1990年挂牌上市。