The first practical windmills were later built in Sistan , Afghanistan, from the 7th century.

的第一个实际风车后来建于斯坦，阿富汗，从公元7世纪。

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Iran's speaker of parliament, Ali Larijani,said the attack was meant to create insecurity in Sistan-Baluchistan and hurt the region's economic development.

VOA: standard.2009.10.18

State media say the deputy commander of the Revolutionary Guards ground forces and a commander of the Guards in Sistan Baluchistan are among those killed.

VOA: standard.2009.10.18

The explosion occurred early Sunday in Pisheen, in the troubled Sistan-Baluchistan region bordering Pakistan.

VOA: standard.2009.10.18

Even before the Afghan crisis, Sistan-Baluchestan was the most sensitive of Iran's difficult border regions.

ECONOMIST: Iran and Afghanistan

The province of Sistan Baluchistan is one of the least developed and one of the poorest areas of Iran.

BBC: Iran's vulnerability to earthquakes

Residents of Mashkel have close ties with ethnic Balochs in Iran's Sistan province.

BBC: The remote corner of Pakistan flattened by an earthquake