The 1st century BC, also known as the last century BC and the last century BCE, started on the first day of 100 BC and ended on the last day of 1 BC.The AD/BC notation does not use a year zero; however, astronomical year numbering does use a zero, as well as a minus sign, so "2 BC" is equal to "year –1". 1st century AD (Anno Domini) follows.. In the course of the century, all the …

The 27th century BC was a century which lasted from the year 2700 BC to 2601 BC. Events. Statuette of Imhotep in the Louvre. He is the first architect and physician whose name was recorded and has survived to modern times. c. 2750–2600 BC: …