At what time do radar operators on Oahu spot unidentified aircraft heading towards Oahu

What did the united states agree to do in the treaty of guadalupe hidalgo? time4learning

Which of the following is not true of the xiongnu empire? burial mounds included glass beads and mirrors made from the sands throughout the region. there was more cooperation through trade between the tribes. other tribal units that were eventually assimilated were indo aryan, xianbei, hunyu, scythina and han chinese. as each nomadic tribe and civilization was conquered or absorbed into the larger empire, the xiongnu were able to hold more territory.

Which of these is the modern day result of spain colonization of the americans?