What was the primary cause of WWII

Not 100% sure but I think It was caused of the finding of the New World Aka The united States of America

Because england, spain, britain, dutch and muslim were all fighting for the land

Many reasons! Rise of militarism in Germany, and Japan, the world wide economic depression, and failure of the leauge of nations.

2018 means 2018 ce or common era

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

i believe the answer is bartolomeo dias