diff --git a/intl/icu/source/data/locales/ug.txt b/intl/icu/source/data/locales/ug.txt
--- a/intl/icu/source/data/locales/ug.txt
+++ b/intl/icu/source/data/locales/ug.txt
@@ -420,16 +420,17 @@ ug{
                         "پ",
                         "ج",
                         "ش",
                     }
                 }
             }
             eras{
                 abbreviated{
+                    0{"BCE"}
                     1{"مىلادىيە"}
                 }
                 wide{
                     0{"مىلادىيەدىن بۇرۇن"}
                 }
             }
             intervalFormats{
                 H{
diff --git a/intl/icu/source/data/locales/yo.txt b/intl/icu/source/data/locales/yo.txt
--- a/intl/icu/source/data/locales/yo.txt
+++ b/intl/icu/source/data/locales/yo.txt
@@ -313,16 +313,17 @@ yo{
                         "Ọjọ́bọ",
                         "Ẹtì",
                         "Àbámẹ́ta",
                     }
                 }
             }
             eras{
                 abbreviated{
+                    0{"BCE"}
                     1{"AD"}
                 }
                 abbreviated%variant{
                     1{"CE"}
                 }
                 wide{
                     0{"Saju Kristi"}
                     1{"Lehin Kristi"}