If you're asking, "When was the Beijing Olympics?" you are most likely referring to the iconic 2008 Summer Olympics, which officially opened on August 8, 2008.

This date, 8/8/08, was meticulously chosen. In Chinese culture, the number eight (八, bā) is considered extremely lucky, as it sounds similar to the word for "prosper" or "wealth" (发, fā). The opening ceremony began at 8:00 PM on the 8th day of the 8th month of 2008, making it a moment brimming with cultural symbolism and auspiciousness.

The Games lasted for 16 days, concluding on August 24, 2008. The host city was, of course, Beijing, China. These Games were historic, marking the first time China had ever hosted the Olympic Summer Games. They were widely praised for their spectacular opening and closing ceremonies, impeccable organization, and impressive athletic venues like the "Bird's Nest" National Stadium and the "Water Cube" National Aquatics Center.

It's important to note that Beijing also later hosted the 2022 Winter Olympics, which opened on February 4, 2022. This made Beijing the first city in the world to have hosted both the Summer and Winter Olympic Games.

So, to answer the question clearly in English:

• The Beijing Summer Olympics opened on August 8, 2008.
• The host city was Beijing, China.

The 2008 Beijing Olympics remain a significant milestone in Olympic history, remembered for their scale, cultural presentation, and the athletic achievements they showcased to the world.