Why aren't banks necessary?
or
why are banks not important

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.