126 Ill. 2d 150 - Vaughn v. Speaker’s Empirical Analysis
1988
Citation profile
34 federal appellate · 148 state decisions
How this case has been cited
Cited by 246 later decisions — most recently April 2025 · most notably 196 Ill. 2d 302 - Geddes v. Mill Creek Country Club, Inc. (2001), Bower v. Jones (1992)
34 federal appellate · 148 state decisions
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Relationships
Relies on 78 Ill. 2d 555 - Chicago Park District v. Kenroy, Inc. · 61 Ill. 2d 365 - Pantle v. Industrial Commission · Lowenberg v. Booth · 47 Ill. App. 2d 267 - Reat v. Illinois Central Railroad · 55 Ill. App. 3d 91 - Town & Country Bank v. James M. Canfield Contracting Co.
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 246 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“'[a] party claiming the benefit of an estoppel cannot shut his eyes to obvious facts, or neglect to seek information that is easily accessible, and then charge his ignorance to others.’ ” Vaughn v. Speaker, 126 Ill. 2d 150, 169 , 533 N.E.2d 885 (1988) (Ryan, J., specially concurring), quoting Vail v. Northwestern Mutual Life Insurance Co., 192 Ill. 567, 570 (1901). Thus, to benefit from equitable estoppel, the plaintiff must have”
3 later decisions quote this exact passage
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.