Anunnaki theory:
Anunnaki came to the planet long ago to mine gold. They soon took early man and altered his /her DNA so they could use them to mine the gold instead as slaves.
They slowly shifted their strategy of enslavement. They put their offspring in charge to rule over man and do the day to day operations, these are the 13 bloodline family's.
They learned that with manipulation they could get us to mine the gold and give it to them w/o them even being here. High IQ Anun's
They created our monetary and banking system. They print worthless paper and loan it to us. They control every world back in every country across the globe.
They loan these country's worthless paper currency.
The country's pay the loans back in gold, with interest. This way they are still getting the gold, we are mining it for them and giving it to them.
The trick is to keep the gold price low but out of reach of the sheep.