#257;ng P&#233;iy&#250; states that there are 58 possible ways of reproducing the calendar dates in <span class="nowrap">N<sub>-133</sub></span> based on the <i>s&#236;f&#275;n</i> system. The maximum deviation of the lunar conjunction times between these 58 systems is 87 minutes. Many scholars proposed their own methods of reconstructing the calendar around that period. Without new data, it was impossible to tell which of these methods was correct.</p> 
    
<p>New data did appear thanks to archeological d