1960s Material requirements planning helps manufacturing companies plan and schedule. MRP systems run on big and clunky mainframes. 1970s SAP formed in Mannheim, Germany, by five former IBM software engineers.1975-1979 Lawson Software, J.D. Edwards, Oracle and Baan founded.Early 1980s MRP evolves into manufacturing resource planning, or MRP II. MRP II includes finances and other functions.1987 ERP becomes ubiquitous as companies rush to meet Y2K deadline. ERP offerings add more functionality. SAP implemented by more than half of the Fortune 500.Early 1990s MRP II evolves into enterprise resource planning. In addition to an increase in functions, ERP systems have a graphical interface and client\/server architecture.1999 ERP becomes ubiquitous as companies rush to meet Y2K deadline. ERP offerings add more functionality. SAP implemented by more than half of the Fortune 500.2000 CIOs scramble to satisfy demand for bells and whistles.2001 1) Internet bubble bursts. CFOs discover maintaining ERP is almostas expensive as installing it. 2) Studies show ERP not delivering ROI. 3) Stories circulate of endless, expensive implementations.2002 ERP blamed for falling profits, poor stock performance and bad weather.2003 SAP announces new push for single instance. ERP is back!