The Black Death was an outbreak of bubonic plague that lasted from about 1347 to 1352. The first cures of bubonic plague did not happen until effective antibiotics were develo â¦ ped in the 20th century. Throw sweet smelling herbs onto the fire to clean the air. 2  Carry pockets of sweet-smelling herbs. 3  Plague-proofing homes by putting glazes over southern windows to block the polluted southern wind. 4  Sit in a sewer so the bad air of the plague is driven off by the even worse one of the sewer.
Chemical element. A chemical element or element is a species of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, or Z). There are 118 elements that have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements.
  The periodic table of elements is a display of chemical elements,  organized in a table like structure by defining characteristics.  There are 118 elements in the table.   it is a chart showing all elements in nature and synthetic and  tells what the abbreviations are.