History of exposure or possible exposure to anticoagulant rodenticides. Difficulty breathing; lethargy; lack of appetite; blood in the stool, vomit, or urine; nose bleed; bleeding gums; hematomas; bruising of skin, ears, or eyes; pallor; or weakness. The most common cause of death is bleeding into the chest cavity.
Islamic architecture. Islamic architecture, building traditions of Muslim populations of the Middle East and elsewhere from the 7th century on. Islamic architecture finds its highest expression in religious buildings such as the mosque and madrasah.
The Ziggurat at Warka. Sumerian architecture is probably the oldest serious architecture (not just building houses and barns) in the world. People living in the area between the Tigris and the Euphrates rivers (modern Iraq) began to build really big, substantial buildings about 3500 BC.