diff --git a/src/i18n/i18n.ts b/src/i18n/i18n.ts
index bf08c0b..e39463c 100644
--- a/src/i18n/i18n.ts
+++ b/src/i18n/i18n.ts
@@ -5,6 +5,7 @@ export const languageFiles = {
   'be-BY': async () => (await import('./json/be-BY.json')).default,
   'de-DE': async () => (await import('./json/de-DE.json')).default,
   'es-ES': async () => (await import('./json/es-ES.json')).default,
+  'en-US': async () => (await import('./json/en-US.json')).default,
   'fa-IR': async () => (await import('./json/fa-IR.json')).default,
   'fr-FR': async () => (await import('./json/fr-FR.json')).default,
   'hi-IN': async () => (await import('./json/hi-IN.json')).default,
@@ -30,4 +31,4 @@ export const languageFiles = {
   'zh-Hant': async () => (await import('./json/zh-Hant.json')).default,
 };
 
-export const supportedLocales = [defaultLocale].concat(Object.keys(languageFiles));
+export const supportedLocales = Object.keys(languageFiles);
diff --git a/src/i18n/json/en-US.json b/src/i18n/json/en-US.json
new file mode 100644
index 0000000..1b4e935
--- /dev/null
+++ b/src/i18n/json/en-US.json
@@ -0,0 +1,20 @@
+{
+  "React lifecycle methods diagram": "React lifecycle methods diagram",
+  "Options": "Options",
+  "Show less-common lifecycles": "Show less-common lifecycles",
+  "React version": "React version",
+  "Language": "Language",
+  "Mounting": "Mounting",
+  "Updating": "Updating",
+  "Unmounting": "Unmounting",
+  "Phases": "Phases",
+  "“{name} phase”": "“Phase {name}”",
+  "Pure and has no side effects. May be paused, aborted or restarted by React.": "Pure and has no side effects. May be paused, aborted or restarted by React.",
+  "Can read the DOM.": "Can read the DOM.",
+  "Can work with DOM, run side effects, schedule updates.": "Can work with DOM, run side effects, schedule updates.",
+  "React updates DOM and refs": "React updates DOM and refs",
+  "Read docs for {name} (opens in a new tab)": "Read docs for {name} (opens in a new tab)",
+  "//reactjs.org/docs/react-component.html#{docname}": "//pl.reactjs.org/docs/react-component.html#{docname}",
+  "See project's page on GitHub (opens in a new tab)": "See project's page on GitHub (opens in a new tab)",
+  "See project on": "See project on"
+}