| Term | Definition |
| The British East India Company | A trade company who was able to monopolize British trade with India. |
| Sepoys | Indian Soldiers who trained by and joined the British Army. |
| The Battle of Plassey, 1757 | Year: 1757. In 1756, the British extended its fortifications of Calcutta illegally. Indian ruler Nawab Siraj-ud-daula then marched on Calcutta and defeated the British. British Colonel Robert Clive and his men then marched from Madras and retook Calcutta in 1757. Clive and Siraj-ud-daula fought for control of Bengal in 1757 at the Battle of Plassey, and Mir Jafar refused to fight for Saraj-ud-daula, after being bribed by Clive, causing Siraj-ud-daula to lose. |
| Siraj-ud-daula | Indian ruler of Bengal who ultimately lost the Battle of Plassey. |
| Mir Jafar | Siraj-ud-daula's uncle and top general, who betrayed Siraj-ud-daula after being bribed by Clive. |
| Robert Clive | British Colonel who marched and retook Calcutta. |
| Conclusion | The Battle of Plassey ultimately marked the beginning of British supremacy in India. |