 Early skyscrapers were mainly made up of small office cubicles, commonly only across, which were placed adjacent to one another along long corridors, following a pattern first invented in the Oriel Chambers building in England in 1864.This allowed the average small company to rent a small amount of space using one or two offices, but held out the option for future expansion by renting additional office cubicles if required at a later date.A skyscraper office relied on natural sunlight from the windows but if necessary was dimly lit from electric desk-top lamps.