The first electric Christmas lights were used in 1882, <span>Edward H. Johnson put the very set of electric Christmas tree lights togehter. </span>
Answer:
a series of public debates with Stephen Douglas
Explanation:
The current president is Donald Trump. He is the 45th president and started in the year of 2017. He is 73 years old and is of the Republican Party.
Answer: Mayan City States.
Explanation: Located in the dense forests of Peten Lies Mayan City States.
The Mayas lived in three separate sub-areas with distinct environmental and cultural differences which includes the northern Maya lowlands located on Yucatan Peninsula, the southern lowlands in the Peten district of northern Guatemala and adjacent portions of Mexico (central America/southern Mexico) and western Honduras and the southern Maya highlands, in the mountainous region of southern Guatemala, culled from (http://anthropology.msu.edu/anp264-ss13/2013/03/28/mayans/).
The Mayas of the southern lowland region in Peten remain the most famous, and existed during the Classic Period of Maya civilization (A.D. 250 to 900), They built large pyramids, temples, astronomical observatory, royal palaces and great monuments that have fascinated far and near explorers till date.
They also made complex mathematical calculations and developed a writing system which helped them. Their agricultural system includes irrigation and terracing of hillsides and maintain power through military coercion and trade network