Thousands are expected to gather in the nation’s capital for the annual March for Life. The event is set to take place on Friday, Jan. 24, at around 11 a.m. at the Washington Monument. The large crowd will then march down Constitutional Avenue towards the Capitol.

The march has been held every January since Jan. 22, 1973, when Roe v. Wade established a woman’s right to have an abortion without excessive government restrictions — the day Kristan Hawkins, president of Students for Life of America, calls “the darkest day of our American story.”