Which was the last of the Ivy League schools to admit women?

I got Dartmouth College

Right.

http://www.thecrimson.com/article/1971/11/22/dartmouth-to-admit-women-in-fall/

The last of the Ivy League schools to admit women was Columbia University, in 1983.

To find this information, you can follow the steps below:

1. Start by searching for "Ivy League schools" on a search engine like Google.
2. Look for a reliable source, such as official university websites, educational institutions, or trustworthy news articles.
3. Visit the official website or the relevant page of each Ivy League school.
4. Look for information regarding the admission of women in their history or about women's admission milestones.
5. Compare the information from each school to determine which one was the last to admit women.

By following these steps, you can find accurate and reliable information on the last Ivy League school to admit women.