Mohammad Reza Pahlavi, the last Shah of Iran, had several achievements during his reign, including modernization and economic development. Some of his notable achievements include:

1. **White Revolution**: Pahlavi implemented the White Revolution, a series of social and economic reforms aimed at modernizing Iran. The reforms included land redistribution, women's rights, and literacy programs[1].

2. **Economic Growth**: Under his rule, Iran experienced significant economic growth, largely due to the increase in oil revenues and industrialization efforts[1].

3. **Education**: Pahlavi's policies led to a significant expansion of education in Iran, with a focus on increasing literacy rates and access to education[3].

4. **Infrastructure Development**: He invested in the development of infrastructure, including the construction of roads, dams, and other public works projects[1].

5. **Women's Rights**: Pahlavi granted women the right to vote and initiated social reforms aimed at improving the status of women in Iranian society[1].

6. **Healthcare**: He made efforts to improve healthcare services and access to medical care for the Iranian population[1].

7. **International Relations**: Pahlavi played a significant role in shaping Iran's foreign policy and strengthening its position on the international stage[1].

8. **Military Modernization**: He focused on modernizing the Iranian military and strengthening its capabilities[3].

9. **Industrialization**: Pahlavi promoted industrialization and economic diversification to reduce Iran's dependence on oil revenue[1].

10. **Cultural Development**: He supported cultural development and the arts in Iran, promoting a modern and cosmopolitan image of the country[1].

These achievements, however, were accompanied by criticisms and political unrest, ultimately leading to the Iranian Revolution and his exile[2][5].

Citations:
[1] Mohammad Reza Pahlavi - Wikipedia https://en.wikipedia.org/wiki/Mohammad_Reza_Pahlavi
[2] Mohammad Reza Pahlavi https://www.newworldencyclopedia.org/entry/Mohammad_Reza_Pahlavi
[3] Mohammad Reza Pahlavi https://military-history.fandom.com/wiki/Mohammad_Reza_Pahlavi
[4] Reza Shah - Wikipedia https://en.wikipedia.org/wiki/Reza_Shah
[5] Iranian Revolution | Summary, Causes, Effects, & Facts https://www.britannica.com/event/Iranian-Revolution