The Crimean War took place in 1853 when the Russians attacked the Ottomans for land around the Black Sea.
The Great Game was held from 1813-1907 when Britain and Russia are in a race to claim Muslim lands in Central Aisa
The Sepoy Rebellion was in 1857 when Sepoys (who were Indian soldiers) refused to use the new cartridges because of the rumor that they were made from cow and pig fat. They physically rebelled against the British
The RAJ was the British rule from 1858-1947. It was the British crown in the Indian subcontinent and it was also called the Crown rule in India (direct rule).
The Boer War is a war fought between the British and the Boers and it was the first modern "total" war. The British won.
The Suez Canal was made in 1869 connecting the Mediterranean Sea to the Red Sea, the geographical location makes this canal so special.