In the Jan. 19 "Today's Papers," Daniel Politi mistakenly wrote that the New York Times video obituary for Art Buchwald was its first. Rather, it was the first video obituary to feature the subject of the obit exclusively for that purpose.

In a Jan. 18 "Sports Nut," Daniel Engber mistakenly identified San Jose Sharks forward Jonathan Cheechoo as Joseph Cheechoo.  The piece also incorrectly identified Major League Baseball's official Web site in 1999 as MLB.com. The URL was majorleaguebaseball.com.

In the Jan. 16 "Explainer" on frozen embryos, Melonyce McAfee mistakenly wrote that the temperature inside a tank filled with liquid nitrogen would drop once the nitrogen dissipated from the tank. The temperature inside the tank would rise.

In the Jan. 10 "Architecture," Witold Rybczynski misidentified the Hampton Oaks development in Fairburn, Ga., as the seventh community built by KB Home in collaboration with Martha Stewart. It is the second.

In the Jan. 4 "Explainer" about identifying meteorites, Melonyce McAfee listed two sources from the University of Indiana. The sources are from Indiana University.