It is an abbrevation for Common Era and is an alternative to the  naming of the calendar era of AD. BCE (Before Common Era) and CE  are the numerical equivalents of the ca â¦ lendar eras of BC (Before  Christ) and AD ('Anno Domini'). 632 CE means the same as 632 AD.
A Rod A rod is a unit of distance equal to 5.5 yards or 16.5 feet.
A surveyors rod is 16.5 feet. A surveyors chain is four rods, or 66 feet. An acre is ten square chains. Now go measure out 66 feet, or measure your house and look at how much 66 feet is in comparison, and think of ten times that area square.