In the March 1 "History Lesson," David Greenberg originally and incorrectly described Patrice Lumumba as being a leader from Ghana. He was the prime minister of the Congo.

In the March 1 "Press Box," Jack Shafer erred in recounting when and how RM "Auros" Harman became a Slate fanatic. He first encountered it in 1999, during a Microsoft internship. He started reading it regularly in 2000. The piece also misspelled "Quds." And it mistated the origin of his nickname: It evolved from the name of his computer, not his sign-on name.

In the March 1 "Technology," the sentence "You'll still have 17 hours and 58 minutes of watching time to go" orginally read "You'll still have 17 hours minus 58 minutes of watching time to go." The error was introduced at the copy-editing stage.

In the Feb. 28 "Architecture," Witold Rybczynski misspelled the name of architect Deborah Berke.

In the Feb. 25 "Today's Papers," Avi Zenilman misstated the Los Angeles Times' lead story. It concerned citizenship applications from green-card holders, not regular moviegoers' taste in films.

In the Feb. 22 "Summary Judgment," Doree Shafrir misidentified Letters From Iwo Jima as an Oscar nominee for best foreign language film. It was nominated for best picture.

In the Feb. 20 "Jurisprudence," Emily Bazelon mistakenly called the Guttmacher Institute the research arm of Planned Parenthood. The institute has been an independent nonprofit organization since 1977. Planned Parenthood contributes 4 percent of its budget and appoints four of 42 board members.

In the Feb. 12 "Explainer," David Grosz made several misleading or inaccurate statements. He said that all fabrics (including cotton) have a "glass" phase and a "plastic" phase and that they wrinkle at high temperatures. Not all fabrics exhibit this behavior; the wrinkles in cellulose-based materials are caused by moisture, not heat. The original version also misused the word crosslink and misrepresented the role of formaldehyde in the wrinkle-free process.

If you believe you have found an inaccuracy in a Slatestory, please send an e-mail to corrections@slate.com, and we will investigate. General comments should be posted in "The Fray," our reader discussion forum.