Djoser rules as early Third Dynasty kingJan 1, 2630 BCELabels: Djoser, Third DynastyBritannicaUMich Library
Imhotep credited with the complex’s designJan 1, 2620 BCELabels: Imhotep, ArchitectBritannicaMet Museum
Stone mastaba expands into a six-step pyramidJan 1, 2620 BCELabels: Step Pyramid, MastabaBritannicaSmarthistory
Major stone building project reshapes Egyptian architectureJan 1, 2620 BCELabels: Limestone construction, Royal monumentUNESCO WHCBritannica
Enclosure wall creates a controlled sacred precinctJan 1, 2620 BCELabels: Enclosure wall, Sacred precinctSmarthistoryBritannica
Colonnaded entrance introduces a new monumental pathwayJan 1, 2620 BCELabels: Colonnade, Processional wayBritannicaSmarthistory
Heb-Sed court builds eternal kingship into the layoutJan 1, 2620 BCELabels: Heb-Sed court, Royal ritualBritannicaSmarthistory
Serdab statue chamber connects offerings and the king’s spiritJan 1, 2620 BCELabels: Serdab, Cult statueAhram WeeklyAncient Egypt org
Underground galleries form an unprecedented burial systemJan 1, 2620 BCELabels: Underground galleries, Burial systemBritannicaAhram Weekly
Memphis pyramid fields gain UNESCO World Heritage statusJan 1, 1979Labels: Memphis necropolis, UNESCOUNESCO WHCEgypt MOTA
1992 earthquake heightens conservation concernsOct 12, 1992Labels: 1992 earthquake, Structural riskArchitectural DigestEnterprise
Restoration begins to stabilize the Step PyramidJan 1, 2006Labels: Restoration, ConservationXinhuaEnterprise
Work pauses amid 2011 upheaval, then resumesDec 1, 2013Labels: 2011 upheaval, Project pauseXinhuaAl Jazeera
Step Pyramid reopens after 14-year restorationMar 5, 2020Labels: Reopening 2020, Step PyramidXinhuaArchitectural Digest