diff --git a/src/document.ts b/src/document.ts
index 47a25d1..8ae4f82 100644
--- a/src/document.ts
+++ b/src/document.ts
@@ -276,9 +276,20 @@ export class List {
     return this.data.note || "";
   }
 
-  /** Date of last change */
-  public get lastModifiedAt(): Date {
-    return this.#companion.getRealTimestamp(this.data.lastModified);
+  /** Date of creation, or undefined if not available */
+  public get createdAt(): Date | undefined {
+    if (this.data.created !== undefined) {
+      return this.#companion.getRealTimestamp(this.data.created);
+    }
+    return undefined;
+  }
+
+  /** Date of last change, or undefined if not available */
+  public get lastModifiedAt(): Date | undefined {
+    if (this.data.lastModified !== undefined) {
+      return this.#companion.getRealTimestamp(this.data.lastModified);
+    }
+    return undefined;
   }
 
   /** Date of completion, or undefined if not completed */
@@ -413,7 +424,7 @@ export class List {
 
     this.itemIds.splice(priority, 0, newId);
 
-    const parentid = this.id === "home" ? ROOT : this.id;
+    const parentid = this.id === ROOT ? "None" : this.id;
 
     this.#companion.addOperation(this.data.treeId, {
       type: "create",
diff --git a/src/export.ts b/src/export.ts
index 4700bb5..4412d5b 100644
--- a/src/export.ts
+++ b/src/export.ts
@@ -70,6 +70,9 @@ export function toJson(list: List): any {
     name: list.name,
     note: list.note,
     isCompleted: list.isCompleted,
+    createdAt: list.createdAt?.toISOString(),
+    lastModifiedAt: list.lastModifiedAt?.toISOString(),
+    completedAt: list.completedAt?.toISOString(),
     items: list.items.map((sublist) => toJson(sublist)),
   };
 }
diff --git a/src/schema.ts b/src/schema.ts
index 32fc923..92a80aa 100644
--- a/src/schema.ts
+++ b/src/schema.ts
@@ -61,6 +61,7 @@ export const TreeDataSchema = z.object({
       prnt: z.string().or(z.null()),
       pr: z.number(),
       cp: z.number().optional(),
+      ct: z.number().optional(),
       lm: z.number(),
       metadata: z.object({
         mirror: z.object({
@@ -76,6 +77,7 @@ export const TreeDataSchema = z.object({
       parentId: i.prnt !== null ? i.prnt : ROOT,
       priority: i.pr,
       completed: i.cp,
+      created: i.ct,
       lastModified: i.lm,
       originalId: i.metadata?.mirror?.originalId,
       isMirrorRoot: i.metadata?.mirror?.isMirrorRoot === true,