On Dec. 29, California Gov. Gavin Newsom also announced that flags at the State Capitol and Capitol Annex Swing Space would be flown at half-staff in honor of Carter. The country’s most recent national day of mourning was in December 2018, following the death of former President George H.W. Bush.

Stock markets and the Postal Service will be closed on January 9 to mourn the death of Jimmy Carter. Here’s what else to know about the National Day of Mourning.