diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 00000000000..08df58f1110
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,8 @@
+
+# Use via git config --local --add blame.ignoreRevsFile .git-blame-ignore-revs
+
+# Big Reformat of 2020
+5225ea426beb873ab4d1906da352b5dde4b45067
+
+# The great rename of 2020
+b4471b1abb2fea14f331d74bf3f2487a2d35c7c3
diff --git a/.gitignore b/.gitignore
index 265cf1c3819..8c471c11742 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@ src/generated
 !.gitmodules
 !.gitignore
 !.gitattributes
+!.git-blame-ignore-revs
 
 # code format to reduce noise in git commits
 !codeformat/