Medical Definition of Red blood cells. Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
Alexander Milne Calder (August 23, 1846 â June 4, 1923) was a Scottish American sculptor best known for the architectural sculpture of Philadelphia City Hall. Both his son, Alexander Stirling Calder, and grandson, Alexander Sandy Calder, became significant sculptors in the 20th century.
Founding father Alexander Hamilton was born circa January 11, 1755 or 1757 (the exact date is unknown), on the island of Nevis in the British West Indies. Hamilton's parents were Rachel Fawcett Lavien, who was of British and French Huguenot descent, and James Hamilton, a Scottish trader.