Explanation: Delhi's rise to prominence as a significant city in Indian history is closely tied to the establishment of the Delhi Sultanate in the twelfth century. Prior to this period, Delhi was a relatively minor city, but the political and cultural developments of the twelfth century transformed it into a major center.
The Delhi Sultanate was a series of Muslim dynasties that ruled in India from the early thirteenth century to the mid-sixteenth century. However, the foundations for this rule were laid in the twelfth century. The Ghurid dynasty, under the leadership of Muhammad Ghori, began to establish control over parts of northern India, including Delhi. This marked the beginning of Delhi's importance as a strategic and administrative center.
One of the most significant events that symbolized Delhi's rise was the construction of the Qutb Minar, which began in the twelfth century under the patronage of Qutb-ud-din Aibak, the first Sultan of Delhi. The Qutb Minar, a towering minaret, not only served as a call to prayer but also as a symbol of the new political and cultural order that was emerging in Delhi.
The twelfth century also saw the construction of other important structures, such as the Quwwat-ul-Islam mosque, which was the first mosque to be built in Delhi. These architectural achievements were not just religious or cultural symbols but also represented the consolidation of political power in the region.
It is important to note that while the Delhi Sultanate officially began in the thirteenth century, the groundwork for this political entity was laid in the twelfth century. The establishment of Delhi as a significant city was a gradual process that began in the twelfth century and continued into the thirteenth century.
Therefore, the correct answer is that Delhi became an important city in the twelfth century, marking the beginning of its rise as a major political and cultural center in India.