This is an attempt to collate the many shout-outs and asides which connect to other points in the Marvel universe, and out into the real world. * As Agent Ward breaks into Vanchat's Paris pied-à-terre an Édith Piaf song is playing. * Ward's observation to Agent Maria Hill that "someone really wanted our initials to spell out 'shield'" tracks back to the organization's first appearance in Strange Tales #135 (August 1965), created by Lee and Kirby, when it was the 'Supreme Headquarters, International Espionage, Law-Enforcement Division'. In 1991, for the comics, it was changed to 'Strategic Hazard Intervention Espionage Logistics Directorate'. The onscreen Marvel universe uses 'Strategic Homeland Intervention Enforcement and Logistics Division'. * Agent Hill's comment that "the d