September 28, 1915: Ethel Greenglass Rosenberg born

March 1917: The Russian Revolution begins

1917: Espionage Act that the Rosenbergs are convicted of violating is enacted

May 12, 1918: Julius Rosenberg born

1929: Communist Party of the United States is founded

Early 1930's: Julius Rosenberg is member of Young Communist League; campaigns for Scottsboro Boys

1934: Julius Rosenberg enters City College of New York; is involved in radical politics

Summer 1939: Julius and Ethel Rosenberg married

December 7, 1941: United States enters World War II after the attack on Pearl Harbor

1942: Julius Rosenberg becomes member of U. S. Signal Corps

1943: Rosenbergs cease open activities with Communist Party; Daily Worker subscription stops

1943: Soviet spymaster Feklisov first meets with Julius Rosenberg

July 1944: David Greenglass chosen to work on the Manhattan Project

November 1944: Julius Rosenberg recruits aid of Greenglasses in obtaining information about the Manhattan Project

December 1944: Julius Rosenberg provides Soviets with a proximity fuse

January 1945: David Greenglass provides his own notes and a sketch of a high-explosive lens from the Manhattan Project

June 1945: Harry Gold meets with Greenglass in Albuqurque

July 16, 1945: United States explodes first Atom bomb at Alamogordo, New Mexico

August 6, 1945: United States drops Atom bomb at Hiroshima

September 2, 1945: World War II ends with the Japanese surrender

September, 1945: Greenglass meets with Rosenberg while on forlough in New York

1945: Julius Rosenberg is dismissed from U. S. Signal Corps

1946: Feklisov meets with Julius Rosenberg for the last time

Late 1946: The Venona Code is broken

1947: Rosenberg's machine shop business fails

June 30, 1948: Max Elitcher and Morton Sobell drive to Catherine Slip where Sobell met with Julius Rosenberg to exchange microfilm

August 28, 1949: Soviets detonate their first Atom bomb

January 21, 1950: Alger Hiss convicted of perjury in denying that he passed secret documents to Communist agent Whittaker Chambers

February 2, 1950: Klaus Fuchs arrested

March 1950: Julius Rosenberg warns Greenglass to flee country

May 1950: Rosenberg asks his physician about what kind of shots are necessary for trip to Mexico

May 22, 1950: Harry Gold confesses to the FBI

May or June 1950: Rosenbergs visit a photographer to obtain passport photos

June 15, 1950: David Greenglass names Julius as the man who recruited him to spy for the Soviet Union

June 16, 1950: Julius Rosenberg is first interviewed by FBI; Joel Barr disappears in Paris

June 30, 1950: United States forces engage in the Korean War

July 17, 1950: Julius Rosenberg arrested while shaving

August 11, 1950: Ethel Rosenberg arrested

August 1950: Sobell and family are kidnapped by Mexican thugs and delivered to U. S. authorities at border

January 31, 1951: Grand jury indicts Rosenbergs, Sobell, David Greenglass, and Yakolev

February 1951: Greenglasses change their story, implicating Ethel Rosenberg in spy activities

March 6, 1951: Trial begins

March 15, 1951: William Perl is arrested on espionage charge

March 28, 1951: Trial ends

March 29, 1951: Jury returns verdict: Guilty of conspiracy to commit espionage

April 5, 1951: Judge Kaufman imposes the death sentence on Rosenbergs, sentences Sobell to 30 years

January 10, 1952: Appeal before the United States Court of Appeals, Second Circuit

February 25, 1952: Appeal denied by Second Circuit Court of Appeals in opinion by Judge Jerome Frank

October 13, 1952: Supreme Court announces that it ruled against granting certiorari on the Rosenberg's appeal

June 13, 1953: Supreme Court denies stay of execution

June 17, 1953: Supreme Court Justice William O. Douglas grants stay of execution

June 19, 1953: Supreme Court, in special session, vacates Justice Douglas's stay of execution

June 19, 1953: Julius and Ethel Rosenberg are executed

June 21, 1953: Funeral of Julius and Ethel Rosenberg

1960: Proximity fuse enables Soviets to shoot down American U-2 spy plane over Soviet territory

1969: Martin Sobell is released from prison

1970- 1974: Khrushchev tape records his memoirs containing observations on the Rosenbergs spy role

1985: Barr and Sarant flee to Soviet Union

1990: Khrushchev memoirs are published, suggesting that Rosenbergs helped Soviets acquire the A-bomb

July 11, 1995: Decoded Venona cables indicating Rosenberg's involvement in espionage are released by NSA and CIA

1997: Soviet spymaster Feklisov admits in interviews that he met with Julius Rosenberg between 1943 and 1946

2001: David Greenglass admits that the trial testimony of the Greenglasses concerning Ethel Rosenberg's role in the conspiracy was perjured.