Dec. 1, 2005, marked the 50th anniversary of Rosa Parks' act of defiance that changed the course of history.

Four days after Parks was arrested for refusing to give up her seat on a bus in Montgomery, Ala., a year-long bus boycott began that propelled Parks to prominence.

To pay tribute during the first week of December, the Triangle Transit Authority, Capital Area Transit and other bus systems are placing posters and brochures on buses explaining the roles that public transportation and Parks played in the civil rights movement.

"Rosa Parks' quiet strength and courage inspired us all and will continue to inspire future generations," said TTA General Manager John Claflin.

In Durham, Mayor Bill Bell has declared Dec. 1-7 "Rosa Parks Week," and community members celebrated Parks' life with a program at the Durham County Library. Charlotte Purvis of Union Baptist Church was to recall her family's participation in the boycott when she was growing up in Tuscaloosa, Ala. Mayor Pro Tem Cora Cole-McFadden and Steve Satterfield, a driver for Durham Area Transit Authority, were also scheduled to speak.

More information about the nationwide tribute can be found at the Web site www.ridetta.org/Bus_Shuttle/Detours_Updates/RosaParksDay.html.