Timeline and source of history

A few exercises with dates:
ƒ Place these dates chronologically on the timeline: 323 CE,
323 BCE, 100 CE, 100 BCE, 1900 BCE, 1090 CE, 2024 CE.
ƒ If King Chandragupta was born in 320 CE, which century
did he belong to? And how many years was that after the
Buddha’s birth?
ƒ Rani of Jhansi was born in 1828. Which century did
she belong to? How many years was that before India’s
Independence?
ƒ Turn ‘12,000 years ago’ into a date.