iPad A1337

The symptoms that you describe suggest a failing/failed battery.  Given the age of an iPad1, this is perhaps not unexpected…

connect your iPad to its Power Adapter and allow the iPad to charge undisturbed overnight. Then, while still connected to external power, try a forced-restart:

Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.

Are you now able to use the iPad while remaining connected to your Power Adapter? If yes, while monitoring the indicated battery state, disconnect the Power Adapter; if the indicated battery state suddenly falls, or the iPad shuts-off, this test demonstrates the iPad battery having reached the end of its usable life. Given its age, you would be best advised to retire the iPad; battery replacement, even if possible via a third-party repaired would be uneconomic.

Otherwise, these support pages should help with troubleshooting battery and charging issues:

Charge and monitor the iPad battery - Apple Support

If your iPad won't charge – Apple Support

You are very welcome.

If you are unable to successfully restart the iPad, unless (a) you already have a backup of your photos, or (b) the photos were synchronised with iCloud Photos, you’ll not be able to recover them.