September 6, 1901. President William McKinley is shot at the Pan American Exposition in Buffalo, NY. Anarchist Leon Czolgosz is arrested in connection with the attack. September 14, 1901. McKinley dies of complications from his bullet wounds. Vice President Theodore Roosevelt assumes the presidency.
Concrete slab. A concrete slab is a common structural element of modern buildings. Horizontal slabs of steel reinforced concrete, typically between 4 and 20 inches (100 and 500 millimeters) thick, are most often used to construct floors and ceilings, while thinner slabs are also used for exterior paving.
Monolithic slabs. Monolithic slabs are foundation systems constructed in one single concrete pour, typically consisting of a 4 inch thick concrete slab with interior thickened portions under load bearing walls and also thickened at all perimeter edges, while the stem wall slabs are comprised of three components.onolithic slabs. Monolithic slabs are foundation systems constructed in one single concrete pour, typically consisting of a 4 inch thick concrete slab with interior thickened portions under load bearing walls and also thickened at all perimeter edges, while the stem wall slabs are comprised of three components.