Cornerstone

Cornerstone has several possible meanings and uses:

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• A cornerstone is an important cultural component of western architecture, often indicating a building time and significant builders, enscribed on the stone. Some cornerstones include time capsules of the time a particular building was built. Cornerstones are found primarily in masonry-based architecture. The origins of this tradition are vague but its presence in Judeo-Christian countries can be associated with one of the Quotations from the Old Testament in the New Testament which portrays a cornerstone as the quintessence of irony.
• Cornerstone is a relational database developed by Infocom and marketed by them and later by Activision.
• Cornerstone is the title of a magazine published by Jesus People USA in Chicago, Illinois. They also run an annual Christian music festival called Cornerstone Festival in Illinois and Florida.
• A cornerstone is a concept which provides the basic tools for understanding or manipulating a larger intellectual edifice.
• Cornerstone is a privately held economic and financial consulting firm with multiple offices in the United States.
• Cornerstone is a Danish heavy metal band.
• Cornerstone is also the name of an album by Styx.