Consider the following statements regarding the foundation of the Sikh Empire:
1. The Sikh Empire formally began with the unification of various Misls under Maharaja Ranjit Singh in 1799.
2. Ranjit Singh declared himself Maharaja of Punjab on Baisakhi in 1801, with Sahib Singh Bedi performing the investiture ceremony.
3. The Nanakshahi rupee, issued by Ranjit Singh, replaced the Mughal currency entirely in Punjab.
4. The empire extended from the Khyber Pass in the West to Tibet in the East at its peak.
Which of the above statements are correct?
1
Only 1 and 2
2
Only 1, 2, and 4
3
Only 2 and 3
4
1, 2, 3, and 4