All three North American capitals now allow same sex marriage.
Ottawa became the first when same-sex marriage became Canadian law several years ago.
Washington, D.C. was next when same-sex marriages began on Wednesday.
Mexico City, which passed it’s same-sex marriage law before D.C., became the third and final North American capital when their law came into effect today.
One of the first couples to marry were Sandra Ponce and her partner of 36 years, Reyna Barrera, 70, who had a breast removed two months ago because of cancer.