They got to Oklahoma by land on their horses and wagons.
Not too long just like about 2 months
They created the sarcophagus, an elaborate burial container to further preserve the dead
The answer is annual grass weeds.
Preemergence herbicides typically been the most effective and preferred to control the annual grass weeds. Preemergence herbicides are widely used to control the weeds that are grown in lawns and if we use this herbicides many weeks before the germination of weeds, it will be very effective.