MAin period timeline 300 AD - Get your tickets 323 AD - Find a guide the most important thing if you visit a museum 280 - Get museum's map it's free 200 AD - Invention of the Audio guide 180 AD - Facilities are added to the Museum Get your tickets Find a guide Get museum's map Audio guide Facilities
Main period timeline
- 300 AD - Get your tickets
- 323 AD - Find a guide
the most important thing if you visit a museum - 280 - Get museum's map
it's free - 200 AD - Invention of the Audio guide
- 180 AD - Facilities are added to the Museum
