diff --git a/src/common/obsidianEvents.ts b/src/common/obsidianEvents.ts
new file mode 100644
index 0000000..209cb0e
--- /dev/null
+++ b/src/common/obsidianEvents.ts
@@ -0,0 +1,10 @@
+import type { TFile } from "../deps";
+import type { FilePathWithPrefix, LoadedEntry } from "../lib/src/common/types";
+
+export const EVENT_REQUEST_SHOW_HISTORY = "show-history";
+
+declare global {
+    interface LSEvents {
+        [EVENT_REQUEST_SHOW_HISTORY]: { file: TFile, fileOnDB: LoadedEntry } | { file: FilePathWithPrefix, fileOnDB: LoadedEntry };
+    }
+}