Historic Bangalore
A stone's throw away from the 3 billion year old rock is Siddapura, where stone tools from 4000 BC have been found. Implements dated to that age have also been found in other Bangalore areas such as Yelahanka..
Burial grounds dating back to 1000 BC have been found in Koramangala, which is now a comfortable middle-class residential suburb of Bangalore.
Imperial Roman coins of Augustus, Tiberius and Claudius dating back to 27 BC have been found in the Yeswantpur area of Bangalore.
The the earliest reference to the name "Bengalooru" from which "Bangalore" is derived occurs in a 9th century AD stone insricption. The legend about the old lady offering King Ballala boiled beans "benda-kaalu" leading to the Bangalore area being named "Benda-Kaal-ooru" dates back the 12th century AD. Bangalore (Bengalooru) was an established village in the Hoysala empire from the 12th to 16th centuries AD.
The rest is "history" as they say - and can be found through these links.