历史时间线
Scroll through major world events from ancient history to today.
2560 BCE
The Great Pyramid of Giza is completed
220 BCE
Construction of the Great Wall of China begins
27 BCE
The Roman Empire is established
1440 CE
Gutenberg invents the printing press
1969 CE
Humans land on the Moon
1983 CE
The modern Internet protocol (TCP/IP) is adopted
1989 CE
The Berlin Wall falls
1991 CE
The World Wide Web becomes publicly available
2003 CE
The Human Genome Project is completed
2007 CE
The first modern smartphone launches
