LAST YEAR: Gov. Mark Sanford's eight-year relationship with a woman in Argentina turns into an affair.

SIX MONTHS AGO: The State newspaper obtains e-mails between the governor and his mistress, which the newspaper first discloses Wednesday.

FIVE MONTHS AGO: First lady Jenny Sanford learns of the governor's affair.

TWO WEEKS AGO: Sanford's wife asks him to leave the house and not contact the family.

THURSDAY: Gov. Mark Sanford takes a State Law Enforcement Division vehicle and leaves Columbia without his security detail.

SATURDAY: State Sen. Jake Knotts, R-Lexington, calls the head of the SLED to ask about rumors that Sanford is missing and unreachable. SLED chief Reggie Lloyd confirms he doesn't know where governor is.

MONDAY: Knotts goes public with concerns Sanford left Columbia Thursday in a SLED vehicle and his whereabouts were unknown. "Ain't nobody seen from him or heard from him since," Knotts said.

Sanford's office said the governor was taking some time away from the office "to recharge after the stimulus battle and the legislative session, and to work on a couple of projects that have fallen by the wayside."

At Sanford's beach house on Sullivan's Island, Sanford's wife, Jenny, said she had no idea where the governor is, and noted that he missed Father's Day with their four boys.

Lt. Gov. Andre Bauer heads for Columbia, in case he needs to take charge, and says the governor's office told him they didn't know where Sanford was or how to reach him.

At 10 p.m., Sanford's office says the governor had gone hiking on the Appalachian Trail.

TUESDAY: Sanford's staff says he checked in with them, from his hike on the Appalachian Trail, and was surprised to learn of all the attention. He said he would return. The story continues to attract national media attention, which Sanford supporters decry as a witch hunt, including a front-page Wall Street Journal story headlined "State of Chaos." Internet bloggers begin to spread infidelity rumors, including a rumor that Sanford was spotted at a Nevada brothel.

Senate Minority Leader John Land, D-Manning, describes the governor's behavior as weird and erratic.

House Speaker Bobby Harrell, R-Charleston, says "a governor shouldn't do these things."

CNN reports that the vehicle Sanford apparently used by Sanford was found in the Columbia airport parking lot.

WEDNESDAY: A reporter from The (Columbia) State confronts Sanford in Atlanta's Hartsfield-Jackson International Airport as he returns from Argentina. Sanford says he "wanted to do something exotic" and traveled alone to Buenos Aires, where he had spent the week. The governor said he had left for Argentina from Columbia, but returned to Atlanta in the hopes of avoiding media attention.

2:30 p.m. — At a live press conference, Sanford admits he had been having an affair with a woman in Argentina, and said his wife learned of the affair five months earlier.

Sanford says he will resign his post as chairman of the Republican Governors Association.

4:40 p.m. — Jenny Sanford discloses that she asked the governor to move out of their home two weeks ago, for what she called a trial separation.

"We reached a point where I felt it was important to look my sons in the eyes and maintain my dignity, self-respect, and my basic sense of right and wrong," she said in a prepared statement. "I therefore asked my husband to leave two weeks ago."

The State publishes e-mails from the summer of 2008 that the newspaper says it obtained in December, between Sanford and an Argentine woman named Maria, in which she professes love for him and he praises her "magnificent gentle kisses."