TIMELINE: Libya's choppy relations with the U.S

(Reuters) - Top U.S. diplomat Condoleezza Rice arrived in Tripoli on Friday on the first visit by a U.S. secretary of state to Libya since 1953, and said it was proof Washington had no "permanent enemies".

Here is a chronology of recent relations between Libya and the United States:

January 1986 - U.S. President Ronald Reagan orders halt to economic and commercial relations with Libya, freezes Libyan assets in the United States.

April 1986 - Libya blamed for bombing of West Berlin disco used by U.S. servicemen that killed three people and injured more than 200.

April 1986 - U.S. aircraft bomb Tripoli, Benghazi and the home of Libyan leader Muammar Gaddafi. Libya says more than 40 people are killed, including Gaddafi's adopted baby daughter.

December 1988 - Pan Am flight 103 from London to New York blown up over Scotland, killing 259 people on board and 11 people on the ground in Lockerbie.

April 1999 - Libya hands over two suspects in the bombing of Pan Am flight 103. They stand trial in the Netherlands under Scottish law. EU suspends sanctions against Libya.

January 2001 - Three judges unanimously find Abdel Basset al-Megrahi guilty of murder and acquit Al-Amin Khalifa Fahima. Megrahi is given a mandatory life sentence. In June 2007, an independent review body said Scotland's High Court would hear an appeal by Megrahi against his conviction.

March 2003 - Libya reaches political agreement with the United States and Britain to accept civil responsibility for the bombing. Libya agrees to pay about $2.7 billion in total.

December 2003 - Libya says it will abandon weapons of mass destruction programs and allow in international inspectors.

January 2004 - Lawmakers arrive on the first visit by a U.S. congressional delegation to Libya since Gaddafi came to power.

June 2004 - U.S. resumes diplomatic ties after 24 years.

September 2004 - Libya signs a deal to pay $35 million compensation to more than 160 victims of 1986 Berlin nightclub bombing.

September 2004 - President George W. Bush formally ends U.S. trade embargo on Libya rewarding it for giving up weapons of mass destruction but leaves some U.S. terrorism-related sanctions in place.

February 11, 2005 - United States ends a restriction barring Libyan diplomats in the U.S. from traveling more than 25 miles

from Washington and New York.