1.) A graph database called Neo4j was created in the 1990s by three guys who had a problem related to language translation. They realized that graphs could model the relationships between concepts. Neo4j became popular for modeling social networks, recommendation systems, and other applications that involve interconnected data.
2.) Neo4j started as an idea, progressed to a prototype, and is now used in production by many companies to model complex relationships in domains like social media and knowledge graphs. It allows modeling data as nodes connected by relationships, and uses the Cypher query language.
3.) Some popular applications built using Neo4j include the digital paper app 53 and customer mapping tools that model how