You cannot uninstall the PlayStore/GoogleMarket app without having your device rooted -- so as Shedo guessed, you probably just uninstalled the latest update. Which means, the original app included with your firmware takes over -- and probably is called "Market" (the original name of the Playstore, before some market specialists started toying with the name)....
Just search on the Google Play store for "custom locale",
there are a couple of apps that will allow you to install a LOT of languages.
I tried many times on different devices and Android versions, sometimes some menus or apps do not change the language, but on average it's OK.
Example applications in Play store:
Set Locale and Language
I have diagnosed several battery related anomalies with a combination of two apps: one called Diagnosis and the other GSam Battery Monitor Pro. GSam isn't as robust but it offers a greater filtering options to sort the culprits by CPU usage, power usage, memory usage.... In every case it turned out to be a problem with an app or a setting or my current ROM ...
Having had no better suggestions I did try a factory reset and it seems to have resolved the problem entirely, indeed the phone 'feels' new. Whilst it is annoying, it's been over a year since having the phone and it only took about an hour to factory reset and restore important files, so it's not the worst solution out there.
Boot into Recovery
Wipe Dalvik cache
Wipe them again
Install your ROM
The first successful boot afterwards is going to take a while, as it is rebuilding Dalvik cache.
If you are not boot looping here, just let it go for a long while. If it boots a while and reboots, wait some more.
I googled and found the Best List of Android lock screen apps that will help your productivity,reading ability and get live scores on your lock screens.you'll be really find it useful Android lock screens
Yes, this is possible without apps. The icons on the lockscreen are the same ones that you chose for the home screen:
Here you see the icons I originally had on both screens:
By changing the apps on my home screen adjacent to all apps, this change is mirrored on the lock screen:
To change the icons adjacent to all apps on your home screen, long-press ...