Welcome To Earth

You, an alien, crash land on a post-apocalyptic wasteland — planet Earth (fun!). After stumbling upon an abandoned time capsule building that humans left behind, containing artifacts detailing humanity’s history, you decide to piece together clues to find out where each artifact came from, to unlock the secrets of what was (is?) all around them (us?).

Type puzzle answers in all lowercase for best results

Hit enter once finished answering puzzle

Only one artifact is fully implemented :(((

Hint: Click on the bookshelf