Events
| Date | Type | |
|---|---|---|
| Chief Justice Taney finds against martial law and orders the release of John Merryman | Lawmaking/Litigating | |
| Federal troops arrest Baltimore's four Police Commissioners in pre-dawn raids on their homes | Battles/Soldiers | |
| - | Federal troops in Maryland swoop to arrest pro-secession legislators, officials, and newspaper editors | Lawmaking/Litigating |
| John Merryman arrested in Maryland | Lawmaking/Litigating |
