ER Timeline

This is a general timeline of the events of ER.

Pre-ER

Year	Events
1962	Doug Ross is born on February to Ray and Sarah Ross.
1963	Mark Greene is born in San Diego, California to David and Ruth Greene. (He may also have been born 1964.)
1964	Victor Clemente is born. He may alternatively have been born 1965.
1965	Peter Benton is born to Mae Benton and an unnamed father.
1968	Jerry Markovic is born on September 24th to Mrs. Markovic and an unnamed father.
1969	Abby Lockhart is born on January 10th to Eddie and Maggie Wyczenski.
1970	John Carter is born on June 4th to John "Jack" Carter, Jr and Eleanor Carter. Tony Gates may have been born this year to Mike Gates and an unnamed mother. (He may also have been born 1971).
1974	Lucy Knight is born to Barbara Knight and an unnamed father.
1977	Neela Rasgotra is born on April 17th to an unnamed mother and an unnamed father.
1979	Samantha Taggart is born on April 2nd to Mary Taggart and an unnamed father.
1991	Luka Kovač loses his family in the Vukovar massacre.
1992	John Carter becomes a medical student.

ER

Year	Events
1994	John Carter joins County ER as a third-year medical student. Carol Hathaway attempts suicide.
1995	Kerry Weaver joins County ER as the Chief Resident.
1996
1997	(Off-screen) Abby Lockhart becomes a medical student.
1998
1999	Luka Kovač, Cleo Finch, and Dave Malucci join County as a moonlighting attending physician, a pediatrics physician, and a second-year resident respectfully. After goading a patient's husband into punching him in an attempt to prove the husband was an abuser, Luka Kovač is fired by Kerry Weaver. Gabriel Lawrence joins County ER as the Senior Attending Physician. Gabe Lawrence leaves County due to his worsening Alzheimers. Luka Kovač is rehired as a permanent attending physician following Gabe Lawrence's departure. Lucy Knight and John Carter are stabbed by Paul Sobriki. Despite everyone's best efforts, Lucy dies. Carol Hathaway gives birth to twins, Tess and Kate Ross. Carol Hathaway leaves the ER to reunite with Doug Ross in Seattle. Abby Lockhart notices John Carter injecting himself with a patient's medication. Following an intervention, Carter enrolls in a rehabilitation program.
2000	Jing-Mei Chen gives birth to her son. She gives him to his adoptive parents.
2001
2002
2003
2004
2005
2006