Issue #23943: Fix typos. Patch by Piotr Kasprzyk.
diff --git a/Doc/library/threading.rst b/Doc/library/threading.rst
index f59ffe5..0133a8f 100644
--- a/Doc/library/threading.rst
+++ b/Doc/library/threading.rst
@@ -874,7 +874,7 @@
of threads that need to wait for each other. Each of the threads tries to pass
the barrier by calling the :meth:`~Barrier.wait` method and will block until
all of the threads have made the call. At this points, the threads are released
-simultanously.
+simultaneously.
The barrier can be reused any number of times for the same number of threads.