diff --git a/main.go b/main.go
index 0b7da5f..6351c03 100644
--- a/main.go
+++ b/main.go
@@ -416,8 +416,17 @@ func handleTask(w http.ResponseWriter, r *http.Request) {
     
     var task Task
     json.NewDecoder(r.Body).Decode(&task)
-    if task.ID == "" {
+    isNew := task.ID == ""
+    if isNew {
         task.ID = time.Now().Format("20060102150405")
+        task.History = make([]HistoryItem, 90)
+        now := time.Now()
+        for i := 0; i < 90; i++ {
+            task.History[i] = HistoryItem{
+                State: "unknown",
+                Time:  now.Add(time.Duration(i-90) * time.Minute),
+            }
+        }
     }
     
     mu.Lock()