diff --git a/docs/Timeline.md b/docs/Timeline.md
index 92e0b4ef..4dcf0a51 100644
--- a/docs/Timeline.md
+++ b/docs/Timeline.md
@@ -7,7 +7,7 @@ flowchart TD
subgraph 1970-1980
- A1[Albertson & Thomson 1976]:::anat
+ A1[Albertson & Thomson 1976]:::anat
end
subgraph 1980-1990
A[White et al. 1986]:::anat & B[Durbin 1987]:::anat