1. A Barnes Foundation Show Illuminates the Dawn of Photography Arts, April 17

    An exhibition shows how the pioneers of photography saw the dominant medium of painting both as inspiration and competition.

  2. Trump Can’t Blame Mexico for U.S. Drug Problems Opinion, April 15

    This tactic dates back to Nixon — and it has always involved a lot of hypocrisy.

  3. Officer Who Used Gun Instead of Taser Won’t Face Charges for Shooting Unarmed Man U.S., April 15

    The Pennsylvania police officer had an “honest but mistaken” belief he was using his Taser before he wounded the man, investigators said.

  4. Don’t Let a Killer Pollutant Loose Opinion, April 14

    The Trump administration is moving to ease standards on a particularly deadly air contaminant.

  5. He Committed a $300 Million Fraud, but Left Prison Under Trump’s Justice Overhaul New York, April 13

    Hassan Nemazee, who once owned a $17.75 million Park Avenue duplex, had been serving a 12-year sentence. He benefited from a criminal justice bill signed by President Trump.

  6. Maryland Man Planned to Run Down Pedestrians at National Harbor, U.S. Says U.S., April 8

    Federal prosecutors say Rondell Henry, 28, was inspired by an ISIS attack in Nice, France, in 2016. He has been charged with interstate transportation of a stolen vehicle.

  7. Buses and Trains Lack Safety Features That Are Standard Elsewhere Business, April 8

    The number of people killed in train and bus accidents is relatively low. But the nation’s top safety board says a few simple measures could cut the figures even more.

  8. Nuclear Power Can Save the World Opinion, April 6

    Expanding the technology is the fastest way to slash greenhouse gas emissions and decarbonize the economy.

  9. If Prisons Don’t Work, What Will? Opinion, April 5

    The Democratic presidential candidates should look at what a growing number of prosecutors are doing to end mass incarceration.

  10. Christchurch Messages on Facebook Lead to Charge of Lying to F.B.I. New York, April 4

    White supremacists discussed an American re-enactment of the mosque attacks, a criminal complaint says.

  11. Looking Again at the Chernobyl Disaster Books, April 3

    Adam Higginbotham’s “Midnight in Chernobyl” explores the causes of the Chernobyl explosion, and Kate Brown’s “Manual for Survival” considers the consequences.

  12. Humanities Endowment Announces New Grants Amid Old Threats Arts, April 2

    The National Endowment for the Humanities announced grants supporting 233 projects around the country, two weeks after the latest effort to close the agency.

  13. Baltimore Mayor to Take Leave of Absence Amid Children’s Book Scandal U.S., April 1

    Catherine Pugh’s office said she was recovering from pneumonia, even as Maryland’s governor called for an investigation into payments to the mayor for her “Healthy Holly” children’s books.

  14. Baltimore Mayor Announces Leave of Absence Amid Children’s Book Scandal U.S., April 1

    Catherine Pugh’s office said she was recovering from pneumonia, even as Maryland’s governor called for an investigation into payments to the mayor for her series of “Healthy Holly” books.

  15. Rediscovering the Confederate Flag of Truce Arts, April 1

    Sonya Clark, a social practice artist, unfurls a handmade version of a Confederate truce flag and asks, ‘What if …”

  16. DNA Is Solving Dozens of Cold Cases. Sometimes It’s Too Late for Justice. U.S., April 1

    Like many other decades-old cases, the 1973 killings of a Montana couple were finally solved using DNA and genealogy technology. But the suspect in the case had died in 2003.

  17. ‘The Case Against Adnan Syed’: Finale Reveals New DNA Test Results Arts, March 31

    The HBO series made good on its promise to deliver big revelations about the 20-year-old murder case that “Serial” made famous.

  18. Black Lawyer Says He Was Detained on the Job and Accused of Being a Suspect U.S., March 28

    Rashad James, who works for Maryland Legal Aid, filed a complaint this week asking for the deputy who detained him to be investigated.

  19. Pennsylvania Police Chief Charged in Child Rape Case U.S., March 28

    After a girl reported sexual abuse, it took seven years for criminal charges to be brought against two suspects, including the Weissport police chief.

  20. ‘Extreme Partisan Gerrymandering Is a Real Problem,’ Says Kavanaugh. He’s Right. Opinion, March 27

    The Supreme Court could make history by erecting a constitutional barrier to electoral maps that put party over country.

  21. Victim of Clergy Abuse in Pennsylvania Receives $2 Million Settlement U.S., March 26

    The priest who pleaded guilty to abuse is one of only two who have faced criminal charges since a grand jury report listed more than 300 offenders.

  22. Supreme Court Set to Again Weigh Voting Maps Warped by Politics U.S., March 26

    The justices will consider on Tuesday whether extreme partisan gerrymandering crosses a constitutional line, an issue they left undecided last term.

  23. Justices Display Divisions in New Cases on Voting Maps Warped by Politics U.S., March 26

    Justice Brett M. Kavanaugh, who may hold the decisive vote, expressed uneasiness about gerrymandering but also wondered if Supreme Court intervention was necessary.

  24. A Colonial-Era Cemetery Resurfaces in Philadelphia Science, March 25

    Remains buried in the First Baptist cemetery were believed to have been moved in 1860. But many coffins and bones were still there.

  25. How an Owner With Deep Roots Lured Bryce Harper to Lay Down His Own Sports, March 24

    “I approach my job as a fan first,” said John Middleton, the Pennsylvania native who gave Harper a 13-year contract in a quest to make the Phillies a model franchise.

  26. Antwon Rose Shooting: White Police Officer Acquitted in Death of Black Teenager U.S., March 22

    Antwon was shot three times while fleeing a traffic stop last summer in East Pittsburgh, Pa.

  27. A Children’s Book Is Causing a Political Scandal in Baltimore. It’s Quite a Tale. U.S., March 22

    Once upon a time, Catherine Pugh, now Baltimore’s mayor, struck a $500,000 deal to sell her “Healthy Holly” books to a hospital provider, while sitting on its board.

  28. When Gun Buybacks Work, and When They Fall Short U.S., March 21

    Governments that want to curb gun violence frequently offer bounties for turning in weapons. New Zealand and Washington State are among the latest.

  29. The Best Places to Be a Buyer — and the Worst Real Estate, March 21

    Looking to buy your first home? Here are the cities to consider, and the ones to avoid.

  30. $250,000 Homes in Maryland, Virginia and Ohio Real Estate, March 20

    A 1925 condominium in Baltimore, a log cabin in Williamsburg and a storybook house near Cleveland.

  31. What You Get for $250,000 Slideshow, March 20

    A 1925 condominium in Baltimore; a log cabin in Williamsburg, Va.; and a storybook house near Cleveland.