Cargo bikes originated in The Netherlands in the early 20 century, and were used by tradesmen to deliver milk, bread, and other goods in the absence of the automobile. By the 1930s, the phenomenon had spread across Scandinavia.
Today, a wide variety of cargo e-bikes are available in the North American market, with different battery range, load capacity and cargo box volume, and each variety has its own purpose. These e-bikes are capable to transport 110–500 pounds of cargo, and have a battery range of up to 30-50 miles.
Cargo e-bikes can be used for commercial deliveries, commuting, shopping, leisure activities or transporting children. (sources)