Please give me suggestions about how to improve this essay about South Sea Islanders in Australian history.

As South Sea Islanders continued to be subjected with racial discrimination and harsh treatment, they excelled in several areas and made contribution to the nation. Majority of the Islanders weren’t capable of speaking or writing in English and so they signed a three-year work contracts thinking that they were only going for three months and were shocked when they realised that they would be gone for 36 months instead. With every new moon, several Islanders marked a tree to know when it was time to go to their homes. The first arrival of South Sea Islanders had to learn English and struggled to adapt to Queensland’s climate. They had little resistance to disease that include: measles, smallpox, tuberculosis, dysentery and pneumonia and many found difficulty in coping with all the different foods. On the other hand, South Sea Islanders had an impact on the development of grazing and farming, maritime industry, mining, pearling, domestic services, childcare and railways. They served the nation as members of the defence force in times of war and peace. Furthermore, they excelled in education, health, politics, government, religions, business, art and sport.

The South Sea Islander’s tremendous effort and their struggles have paid off. They have created a unique history to themselves that will remain to be acknowledged by Australians today. Their work impacted on many areas in Australia, especially in sugar industries.