Blood blood clotting in a transparent container. When blood is drawn in a glass container and left undisturbed for about an hour, four different layers can be seen. A dark clot forms at the bottom (the "black bile"). Above the clot is a layer of red blood cells (the "blood"). Above this is a whitish layer of white blood cells (the "phlegm"). The top layer is clear yellow serum (the "yellow bile"). The ABO blood group system was discovered in the year 1900 by Karl Landsteiner. Jan Janský is credited with the first classification of blood into the four types (A,
Blood Sweat & Tears (song) in Billboard Japan Hot 100, and selling 4,156 On May 10, 2017, the Japanese version was released, selling 144,234 in the first day, and charting first on Oricon daily chart, and 223,082 according to SoundScan Japan. The song charted 1st on "Oricon" weekly single chart, "Billboard" Japan Hot 100, & top singles sales, selling 310,276 copies in the first week according to SoundScan Japan. The Korean credits are adapted from the CD liner notes of "Blood, Sweat, & Tears". Blood Sweat & Tears (song) "Blood Sweat & Tears" (; Japanese: ; Hepburn: "Chi, ase, namida") is a song recorded by