Sheikh Khalifa bin Zayed Al Nahyan was the President of the United Arab Emirates (UAE) and the ruler of Abu Dhabi. He was born on March 7, 1948, and became president in 2004 after the death of his father, Sheikh Zayed bin Sultan Al Nahyan. Under his leadership, the UAE experienced significant economic growth and development. Sheikh Khalifa was known for his efforts in modernizing the UAE's infrastructure and promoting education and healthcare. He also played a key role in enhancing the country's international relations and supporting humanitarian initiatives around the world. His leadership contributed to the UAE's status as a global hub for trade and tourism.