Before revision: Notable American singer Paul Robeson's index card update form from the 1970s The FBI Indexes, or Index List, was a system used to track American citizens and other people by the Federal Bureau of Investigation (FBI) before the adoption of computerized databases.
After revision: page=113|Index entry of Martin Luther King Jr. The FBI Indexes, or Index List, was a system used to track American citizens and other people by the Federal Bureau of Investigation (FBI) before the adoption of computerized databases.