许都 / Xudu
Hanji 1003 uses Xu first as 曹操’s operating base before the court relocation. Cao Cao wants to move from Xu toward 洛阳, but the route runs through 杨奉’s position at Liang, which is why 董昭’s advance letter matters before the later move of 汉献帝 to Xu.
Hanji 1004 supplies the decision that makes Xudu the late-Han court site. 董昭 advises 曹操 to move 汉献帝 from ruined 洛阳 to Xu county because Luoyang lacks food and reliable control while Xu is easier to supply and defend from Cao Cao’s base.
Hanji 1005 then backfills the immediate aftermath. The relocation breaks Cao Cao’s unstable relationship with 杨奉, who had tried to obstruct the move from Liang but failed to arrive in time.
In this source, Xudu matters as the setting for early court-title management. Emperor Xian’s name is used to reproach and appoint 袁绍, while Cao Cao later accepts a lower formal title after yielding great general to Yuan Shao. The place therefore joins court control and 战略性名位让步 before the later屯田 branch.
Hanji 1008 later develops Xudu as the area where 曹操 first organizes large-scale 屯田制 after accepting 枣祗’s proposal. The episode treats Xudu less as a court capital than as an agricultural-logistics node: land, displaced people, administrators, and nearby military need are combined into a grain base.
The source says the Xudu-area experiment succeeds enough that other州郡 follow with屯田 offices and that warehouses gradually fill. Xudu therefore anchors the episode’s claim that Cao Cao’s later military freedom depends on a production base near his political center.