Native American History. Native American cultures in the United States include a wide array of socially and geographically diverse groups, whose nomadic ancestors are believed to have traveled via a long-gone land bridge across the Bering Strait at least 13,000 years ago.
182. Valium can stay in your system and be detected in urine for up to 5-7 days after therapeutic use. Chronic use (over one year) of Valium, however, can be detected much longer. The detection window for Valium in urine screens is up to 4-6 weeks. More here on the detection window and drug testing for Valium.
Special Notes For The Valium Hair Drug Test: The benchmark drug detecÂ­tion time for the valium hair drug test is 90 days. Sometimes a longer hair sample is taken, which can result in a 120 day detection time. This is rare, but you can never count it out.