Civil liberties involve basic freedoms like speech and religion protected by the 1st Amendment, while civil rights protect against discriminatory treatment protected by the 5th and 14th Amendments. Over time, Supreme Court decisions have applied most Bill of Rights protections to states through selective incorporation of the 14th Amendment's due process clause. Legislation like the Civil Rights Acts of 1964 and 1965 also aimed to protect citizens from discrimination in areas like public accommodations, housing, employment, and voting. However, private discrimination remained an issue addressed by expanding the interpretation of federal powers like the Commerce Clause.