Unitized Curtain Wall Systems 6450 Unitized Curtain Wall Although unitized, pre-glazed curtain wall systems are particularly suited to high-rise construction or projects with large quantities of module repetition or whenever 4-sided capless systems are required; it can also be considered on any size project that demands it.
Introduction. The explorer Christopher Columbus made four trips across the Atlantic Ocean from Spain: in 1492, 1493, 1498 and 1502. He was determined to find a direct water route west from Europe to Asia, but he never did. Instead, he accidentally stumbled upon the Americas.
After a brief stop at Jamaica, Columbus sailed to Central America, arriving at Guanaja (Isla de Pinos) in the Bay Islands off the coast of Honduras on 30 July. Here Bartolomeo found native merchants and a large canoe, which was described as being long as a galley and filled with cargo.