Mosaic is decorative art technique for creating images using many small coloured tiles. It has a long history, starting as long ago as 3000 BC. Mosaics pictures became widespread in Ancient Greece and Rome and were used in early Christian basilicas from the 4th century onwards. Mosaic art flourished up to the 15th century.
Modern mosaics are made by professional artists, street artists, as a popular craft and today can be created using computer digital techniques and robotics.