diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..5effe81c
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2026 Nelson Spence
+
+ordvec is dual-licensed under either of:
+
+  * Apache License, Version 2.0
+    (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
+  * MIT license
+    (LICENSE-MIT or https://opensource.org/licenses/MIT)
+
+at your option.
+
+SPDX-License-Identifier: MIT OR Apache-2.0
+
+The complete text of each license is provided in LICENSE-APACHE and
+LICENSE-MIT in the root of this repository.
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in this project by you, as defined in the
+Apache-2.0 license, shall be dual licensed as above, without any
+additional terms or conditions.