diff --git a/src/backend/db/migrations/4_add-created-at-on-tasks.sql b/src/backend/db/migrations/4_add-created-at-on-tasks.sql
new file mode 100644
index 00000000..56f93d86
--- /dev/null
+++ b/src/backend/db/migrations/4_add-created-at-on-tasks.sql
@@ -0,0 +1,7 @@
+-- Each task should have a created_at date so that we can sort by assigned date
+-- NOTE: This relies on the assigned date never changing; if the app allows changes, we will likely want create a dedicated assigned_on date in addition to (or instead of) this column 
+ALTER TABLE task
+ADD COLUMN created_at TIMESTAMPTZ NOT NULL DEFAULT NOW();
+
+-- Add index to allow easy queries of tasks by date
+CREATE INDEX idx_created_at ON task(created_at);
diff --git a/src/backend/db/zapatos/schema.d.ts b/src/backend/db/zapatos/schema.d.ts
index 0d734ec7..b49ab1f6 100644
--- a/src/backend/db/zapatos/schema.d.ts
+++ b/src/backend/db/zapatos/schema.d.ts
@@ -2019,6 +2019,12 @@ declare module 'zapatos/schema' {
       */
       benchmark_id: string | null;
       /**
+      * **task.created_at**
+      * - `timestamptz` in database
+      * - `NOT NULL`, default: `now()`
+      */
+      created_at: Date;
+      /**
       * **task.due_date**
       * - `timestamptz` in database
       * - Nullable, no default
@@ -2057,6 +2063,12 @@ declare module 'zapatos/schema' {
       */
       benchmark_id: string | null;
       /**
+      * **task.created_at**
+      * - `timestamptz` in database
+      * - `NOT NULL`, default: `now()`
+      */
+      created_at: db.TimestampTzString;
+      /**
       * **task.due_date**
       * - `timestamptz` in database
       * - Nullable, no default
@@ -2095,6 +2107,12 @@ declare module 'zapatos/schema' {
       */
       benchmark_id?: string | db.Parameter<string> | db.SQLFragment | db.ParentColumn | db.SQLFragment<any, string | db.Parameter<string> | db.SQLFragment | db.ParentColumn>;
       /**
+      * **task.created_at**
+      * - `timestamptz` in database
+      * - `NOT NULL`, default: `now()`
+      */
+      created_at?: (db.TimestampTzString | Date) | db.Parameter<(db.TimestampTzString | Date)> | db.SQLFragment | db.ParentColumn | db.SQLFragment<any, (db.TimestampTzString | Date) | db.Parameter<(db.TimestampTzString | Date)> | db.SQLFragment | db.ParentColumn>;
+      /**
       * **task.due_date**
       * - `timestamptz` in database
       * - Nullable, no default
@@ -2133,6 +2151,12 @@ declare module 'zapatos/schema' {
       */
       benchmark_id?: string | db.Parameter<string> | null | db.DefaultType | db.SQLFragment;
       /**
+      * **task.created_at**
+      * - `timestamptz` in database
+      * - `NOT NULL`, default: `now()`
+      */
+      created_at?: (db.TimestampTzString | Date) | db.Parameter<(db.TimestampTzString | Date)> | db.DefaultType | db.SQLFragment;
+      /**
       * **task.due_date**
       * - `timestamptz` in database
       * - Nullable, no default
@@ -2171,6 +2195,12 @@ declare module 'zapatos/schema' {
       */
       benchmark_id?: string | db.Parameter<string> | null | db.DefaultType | db.SQLFragment | db.SQLFragment<any, string | db.Parameter<string> | null | db.DefaultType | db.SQLFragment>;
       /**
+      * **task.created_at**
+      * - `timestamptz` in database
+      * - `NOT NULL`, default: `now()`
+      */
+      created_at?: (db.TimestampTzString | Date) | db.Parameter<(db.TimestampTzString | Date)> | db.DefaultType | db.SQLFragment | db.SQLFragment<any, (db.TimestampTzString | Date) | db.Parameter<(db.TimestampTzString | Date)> | db.DefaultType | db.SQLFragment>;
+      /**
       * **task.due_date**
       * - `timestamptz` in database
       * - Nullable, no default
diff --git a/src/backend/routers/para.ts b/src/backend/routers/para.ts
index 4f331d96..78661095 100644
--- a/src/backend/routers/para.ts
+++ b/src/backend/routers/para.ts
@@ -83,6 +83,7 @@ export const para = router({
         "task.due_date",
         "task.seen",
         "task.trial_count",
+        "task.created_at",
 
         eb
           .selectFrom("trial_data")
diff --git a/src/pages/benchmarks/index.tsx b/src/pages/benchmarks/index.tsx
index 79842d30..2bd3750d 100644
--- a/src/pages/benchmarks/index.tsx
+++ b/src/pages/benchmarks/index.tsx
@@ -122,13 +122,9 @@ function Benchmarks() {
                 <FilterAlt /> Filter <KeyboardArrowDown />
               </span>
 
-              {
-                // TODO: replace simple sort pill w/this sort pill placeholder
-                /*
-              TODO: replace simple sort pill w/this sort pill placeholder
-
-              Sort Pill Placeholder
-              <span
+              {/* simple sort pill POC (TODO: add `<KeyboardArrowDown/>` if dropdown needed) */}
+              <button
+                onClick={() => handleSort("created_at")}
                 className={`${$button.pilled}`}
                 style={{
                   display: "flex",
@@ -137,10 +133,8 @@ function Benchmarks() {
                   gap: "4px",
                 }}
               >
-                <Sort /> Sort <KeyboardArrowDown />
-              </span>
-              */
-              }
+                <Sort /> Sort by date
+              </button>
 
               {/* simple sort pill POC (see TODO above) */}
               <button
diff --git a/src/types/global.ts b/src/types/global.ts
index 380833d0..06cbce7f 100644
--- a/src/types/global.ts
+++ b/src/types/global.ts
@@ -5,7 +5,7 @@ export type Benchmark = SelectableForTable<"benchmark">;
 export type ChangeEvent = React.ChangeEvent<HTMLInputElement>;
 export type FormEvent = React.FormEvent<HTMLFormElement>;
 
-export type SortProperty = "first_name";
+export type SortProperty = "first_name" | "created_at";
 export type SortDirection = "asc" | "desc";
 
 export interface TaskData {
@@ -21,4 +21,5 @@ export interface TaskData {
   trial_count: number | null;
   seen: boolean;
   completed_trials: string | number | bigint | null;
+  created_at: Date;
 }