The language of the widget is determined from the mark-up of your page: You should include a lang=“xx” tag in your page to tell the browser, search engines and screen readers the language of your page, we read that same attribute to set the language of our widgets.
If you don’t have access to the raw page template, you can also put lang=“en” (for your desired language code) on the embed code itself, or any other parent element of the embed.
You can see the Twitter Translation center (http://translate.twitter.com) to see which languages we currently support.
Ben
