Japan has the world's third-largest economy, having achieved remarkable growth in the second half of the 20th Century after the devastation of World War II.
But this and other traditions are under pressure as a young generation more inclined towards Western culture and ideas grows up.
On the other hand, one of the biggest challenges that successive Japanese governments have faced is how to meet the huge social security costs engendered by an ageing society. Measures to increase sales tax to this end threatened to split the governing Democratic Party in 2012 and help contribute to its heavy defeat in the December parliamentary election.
Japan's relations with its neighbours are still heavily influenced by the legacy of Japanese actions before and during World War II. Japan has found it difficult to accept and atone for its treatment of the citizens of countries it occupied.
A Japanese court caused outrage by overturning a compensation order for Korean women forced to work as sex slaves.
South Korea and China have also protested that Japanese school history books gloss over atrocities committed by the Japanese military. Japan has said China promotes an anti-Japanese view of history.
Following World War II, lawmakers forged a pacifist constitution. This seemed inviolable for more than half a century, but since the beginning of the twenty-first century it has been subjected to some reinterpretation.
In the last decade, some Japanese politicians have called for the constitution to be revised to allow its military to take part in peacekeeping missions abroad.
Twenty percent of the world's earthquakes take place in Japan, which sits on the boundaries of at least three tectonic plates. Schools and office workers regularly take part in earthquake drills, and waiting for "the big one" is deeply engrained in the national psyche.
The March 2011 earthquake unleashed a devastating tsunami, and Japan is still coming to terms with its impact – not least the question of restarting its nuclear energy programme after the closure of the crippled Fukushima plant.