He swung the flamberge around.

Japan during the Edo period was governed by the shogunate.

I think that person is what you call a 'chuunibyou'.

He completely memorized the alphabet.

Hafnium is a chemical element with atomic number 72.

A wolf is prowling around in the forest.

Fermi is an old unit and is not used much now.

The size of this atom is about 100 fermi.

The difference between him and me is that he is good at math and I am good at English.

I contributed books to the local library.