Official website of Daniel Ellsberg. Many links, including a biography, interviews, and articles he has written.

This in-depth paper examines the idea of convexity. Euclid's Elements, the first geometry textbook, assumed convexity without mentioning the term.

Winding down the war in Vietnam took several years. Read about Richard Nixon's plans for Vietnamization and "peace with honor." Find out how other events in Vietnam pushed the antiwar movement to even more demonstrations.

One of the most controversial proxy-wars of the Cold War was the Vietnam War. Lasting from 1955 to 1975, the North Vietnamese fought the South Vietnamese with the USSR's and America's respective support. This collection includes 9...

On this site students are instructed to locate different types of polygons on triangle grid paper. This page can be printed so that students can actually draw them. It also gives a definitions link for each polygon.

Vietnam War factual timeline featuring important dates, famous people involved in the war, and significant events that provide the history of the Vietnam War (November 1, 1955 - April 30, 1975) and its repercussions in the United States.

Find out how the First Amendment serves citizens in real life by reading about Daniel Ellsberg, Mary Beth Tinker, and Alton T. Lemon, all of whom were principal litigants in landmark Supreme Court cases regarding the freedom of expression.

Generate different "nets" for paper construction of common three-dimensional shapes: cube, cuboid, pyramid, cone, tetrahedron, cylinder, octahedron, rhombic prism, dodecahedron, pentagonal prism, and pentagonal prism.