1967
a selective college looks at your grades and where you placed in high school , an open college allows anyone to recive an education as long as they can pay
it has been open for 56 years
20 years wthas been open for education
1919
Android has been an open source OS since 2008.
43 years
1963
It has been around since 1951
Walt Disney World has been open for 40 years, from 1971 to present.
5 years! (for now...)
ten years
23