(50-, 25- and 10- year, but also 2-year) and the earliest reunion classes (65-year and prior) are assigned to Reunion I; other reunions (5-, 15-, 20-, 30-year, and so on) are assigned to Reunion II. There have been several controversies surrounding commencement over the years. See Smith College commencement controversies to learn more. Environmental sustainability Smith has taken numerous steps toward environmental sustainability, including a 30% reduction in energy use. Also, through a contract with Zipcar, the college has reduced the need for individually owned-cars on campus. Complementing this effort, the college has also promoted sustainability through academics and through the arts. In keeping with its sustainability efforts, all Smith dining locations have discontinued the use of "to-go" supplies which included paper cups and plates, as well as plastic utensils. They now encourage students to bring their own, reusable containers and utensils if they wish to bring food back to their rooms. Smith College provides all students with a reusable drink container at the beginning of each academic year. In past years, these containers have been variations on travel mugs, Sigg bottles, and Nalgene. Those dining halls that still offer "To-Go" options no longer provide paper bags and instead use wax paper bags, biodegradable plastic, and recyclable utensils made of vegetable cellulose. In the fall of 2017, Smith dining halls began to offer plastic Tupperware containers students may borrow and return to the dining halls to be washed. For Smith's efforts regarding sustainability, the institution earned a grade of "A−" on the "College Sustainability Report Card 2010" administered by the Sustainable Endowments Institute. Smith was lauded for many of the indicator categories, including student involvement, green building, and transportation, but was marked down for endowment transparency. Notable alumnae Among the more notable of Smith College's alumnae in chronological order are: Otelia Cromwell (class of 1900): first African-American graduate of Smith College and the first African American woman to receive a doctorate from Yale Blanche Hinman Dow (class of 1913): former president of the American Association of University Women Clara Savage Littledale (Class of 1913): writer and war reporter for Good Housekeeping, and Parents editor for over thirty years. Eunice Carter (class of 1921): first female African-American assistant district attorney for the state of New York, active in the prosecution of mob boss Charles "Lucky" Luciano Margaret Mitchell (class of 1922): author of Gone with the Wind, did not graduate from