How old is the Modern Management Theory?

Chanakyan's (350-283 BC) 'Arthasasthram' gives an insight into Rajaneethi (this can be construed as Corporate Governance or Strategic Management in today's organizational context). A small excerpt loosely translated to English is provided below;

He talks at length about what ought to be done (not to be done) when starting a new venture.

'Delays and a lack of fixity of purpose result in the objectives not being achieved. There are very few ventures or action plans that do not have a downside to it. However, if the negatives far outweigh the positives, it is desirable not to start the venture. Organization should grab the opportunities that comes its way; failure to do so might end up as being detrimental to the organization in the long run. One of the critical success factors is the knowledge about the environment. Inordinate delays will negate the effectiveness of the venture. Hence it is very important that action is taken in time. If the environmental factors (PEST - Political, Economical, Social and Technological?) are favourable, success of the venture is assured. However, if they are antagonistic, even the best laid plans might not fructify. The plan should be tested prior to implementation (origins of Test Marketing?). This should be done through Knowledge and Estimation. Pre-testing of the plan will reduce the risk factors and ensure its success.'

Should we rewrite the history of modern management theory which is construed to be about 100 years old?