Short answers, pulled from the story.
Construction of the Shalamar Gardens began on 3 Rabi-ul-Awwal 1051AH which corresponds to the 6th of June 1641. The project took exactly 17 months and 14 days to complete before finishing in 1642.
Emperor Shah Jahan ordered the construction of the Shalamar Gardens during a period when the Mughal Empire reached its artistic zenith. Ali Mardan Khan oversaw most construction efforts while Khalilullah Khan and Mulla Alaul Maulk Tuni cooperated on management.
The gardens were originally called Farah Bakhsh meaning Delightful until the reign of Shah Alam I. Historians of Nader Shah first used the name Shola-i-Mah translating to Ray of the moon while Maharaja Ranjit Singh renamed the site Shahla Bagh meaning garden of the black-eyed sweetheart.
The Shalamar Gardens contain 414 fountains that discharge into wide marble pools called haūz distributed across three levels. The upper level terrace has 105 fountains the middle level terrace has 152 fountains and the lower level terrace has 153 fountains.
In 1981 the Shalamar Gardens was included as a UNESCO World Heritage Site alongside the Lahore Fort under the 1972 Convention concerning the protection of world cultural sites.