Sproul Plaza takes its name from Robert Gordon Sproul, who served as president of the University of California from 1930 to 1952. The plaza was designed in 1962 by landscape architect Lawrence Halprin, during a period when the university was expanding its core campus southward from Strawberry Creek to Bancroft Avenue, absorbing acres of commercial and residential properties along the way. The result is a space divided into two levels - Upper Sproul and Lower Sproul - separated by twelve feet of elevation and linked by stairs. Upper Sproul faces Sproul Hall to the east, with Sather Gate opening northward into the central campus and Telegraph Avenue stretching south into the student neighborhoods of Berkeley. The terraced stairway leading to Sproul Hall's entrance creates a natural amphitheater: a raised stage with a built-in audience of everyone walking to class. Halprin may not have intended to design a protest venue, but he could hardly have done better if he had tried.

The Free Speech Movement of 1964 made Sproul Plaza famous, but it was only the beginning. When Savio spoke and Joan Baez sang from those steps, they established a template that Berkeley would follow for decades. The plaza became the staging ground for early teach-ins against the Vietnam War, drawing crowds who gathered under the plane trees to hear professors and activists debate a conflict that was escalating thousands of miles away. In 1969, National Guard helicopters dispersed tear gas over People's Park protesters who had rallied at Sproul. From 1985 to 1986, students built shanties on the plaza to protest the university's investments in apartheid-era South Africa. In 2011, the Occupy movement set up camp. Each generation found the same steps, the same sightlines, the same acoustics that turned a public space into a political one.

Between protests, Sproul Plaza is simply where Berkeley happens. On any given weekday during the semester, dozens of student organizations set up folding tables along the walkways - a practice known as "tabling" - recruiting members, distributing flyers, collecting signatures, and arguing with each other in the most Berkeley way possible. A double row of pollarded London plane trees lines the plaza, their sculpted canopies a signature of the campus landscape. On the first Tuesday of each month during the academic year, a program called Pet Hugs brings therapy dogs to the plaza from noon to one, offering students a brief reprieve from the pressures of studying at one of the most demanding public universities in the country. The juxtaposition is pure Berkeley: a plaza that hosted tear gas and folk songs now also hosts golden retrievers.

Lower Sproul Plaza sits directly west of its upper counterpart and has a distinctly different character. Where Upper Sproul is open and civic, Lower Sproul is enclosed by 1960s brutalist-style buildings that house the machinery of student life. The Martin Luther King Jr. Student Union anchors the east side, with the Cesar E. Chavez Student Center to the north and Zellerbach Hall - the campus's largest indoor performance venue - to the west. Artist-activist Emmy Lou Packard once created an 85-foot-long modernist bas-relief mural for the center of the plaza, depicting California landscapes from coastal bluffs to mountain rivers. A major redevelopment completed in the 2010s, funded in part by student fees passed by referendum in 2010, transformed the space. Eshleman Hall now houses the student senate chambers, the Bear's Lair pub, and co-working space for registered student organizations. The food hall, art studio, and Basic Needs Center - including a food pantry - reflect a university that has learned its students need more than lecture halls.

Sproul Plaza is not beautiful in any conventional sense. It is concrete and stairs and functional buildings and trees that have been aggressively pruned into geometric shapes. But it is one of the most consequential public spaces in American higher education - a place where the idea that students have a right to political speech was tested and, eventually, won. The brass marker on the steps is small enough to miss if you are not looking for it. Most students walk over it every day without noticing. That, too, seems right. The point of the Free Speech Movement was not to create a monument but to establish a principle, and the principle lives in the fact that anyone can still stand on those steps and say what they believe. The plaza's real landmark is not the plaque. It is the permission.