FORTY industrial-grade intermediate bulk containers (IBC tank, IBC tote), engineered for the mass handling, transport, and storage of liquids, semi-solids, pastes, or solids. Hopefully none of these are toxic.
South Dakota, forever to be known as #40 in the roll call of the Union of states.
On November 2, 1889, South Dakota and North Dakota joined the Union. Traditionally, North Dakota is considered to be 39 and South Dakota is number 40 in the roll of states in the Union.
When President Harrison signed the papers to make North and South Dakota states, the papers were mixed up and obscured so no one know which was signed first.