This is a historic building.

He is majoring in history at university.

He is a famous historian and has written many history books.

He recognizes the importance of oral history.

He is trying to hide his embarrassing past.

He is feigning ignorance about that problem.

It's better for him not to know the truth. After all, ignorance is bliss.

He knows that pain through his own experience.

He is working hard to make his abilities known to the world.

God only knows what he is thinking.