Oregon is one of the only three states of the US to have a coastline on the Pacific Ocean, and its closeness to the ocean heavily influences the state's mild winter climate even with its northern latitude. Oregon was inhabited by many tribes before Western traders, settlers and explorers had arrived. A sovereign government was formed in the Oregon Country in 1843 before the Oregon Territory was created in 1848. Portland is Oregon's most populous city, with 632,309 residents, and is the 26th most populous city in the United States. Portland's population of 2,389,228 ranks the 23rd massive metro in the nation.
3D and 4D ultrasounds have become a core component in most pregnancy tests. This test can check for twins, the gender of the fetus and or any defect or abnormality that a fetus could potentially have. This noninvasive insight allows doctors to remedy these defects before they become irreparable.